Zoofilia Abotonada Anal Con Perro [updated] Here

Which of these would you like?

This guide explores the intersection of Animal Behavior (ethology) and Veterinary Science, a field often called Veterinary Behavior. Understanding how animals act is no longer just "nice to know"—it is a critical diagnostic tool for health and welfare. 1. The Core Connection

In veterinary science, behavior is often the first clinical sign of disease. Because animals cannot speak, changes in their actions are their only way to communicate physical distress.

Behavior as a Symptom: A cat stopping its grooming may indicate arthritis; a dog becoming aggressive might have a thyroid imbalance or chronic pain.

Stress & Recovery: High cortisol levels (from fear or anxiety) can suppress the immune system and slow down post-surgical healing. 2. Key Areas of Study

Ethology: Studying animals in their natural environment to understand "normal" species-specific behaviors (e.g., foraging, social grooming).

Applied Animal Behavior: Using learning theory (Classical and Operant Conditioning) to modify behaviors like separation anxiety or phobias.

Comparative Psychology: Comparing the mental processes and emotions of different species.

Neurobiology: Examining how the brain and nervous system influence actions, including the role of neurotransmitters like serotonin and dopamine. 3. Veterinary Behavioral Medicine

This specialized branch focuses on diagnosing and treating disorders that aren't just "bad habits" but are rooted in pathology.

Pharmacology: Using psychoactive medications (like SSRIs) in conjunction with behavior modification plans.

Low-Stress Handling: Techniques used in clinics (often called "Fear Free") to minimize an animal's trauma during exams.

Animal Welfare: Evaluating the "Five Domains" (Nutrition, Environment, Health, Behavior, and Mental State) to ensure a high quality of life. 4. Career Paths

Veterinary Behaviorist (DVM): A veterinarian who completes a residency in behavior. They can prescribe meds and diagnose complex issues.

Certified Applied Animal Behaviorist (CAAB): Usually holds a PhD or Master’s in a biological or behavioral science.

Vet Technician Specialty (VTS-Behavior): Nurses who specialize in behavioral triage and client education.

Animal Welfare Researcher: Working for zoos, farms, or labs to improve living standards through behavioral observation. 5. Essential Tools & Techniques

Desensitization: Gradually exposing an animal to a scary stimulus at a level that doesn't trigger a reaction.

Counter-conditioning: Changing an animal’s emotional response to a stimulus (e.g., "See a needle, get a high-value treat").

Environmental Enrichment: Providing mental stimulation (puzzles, scent work) to prevent "stereotypies" (repetitive, purposeless behaviors).

This review of Animal Behavior and Veterinary Science examines the integration of ethology (the study of animal behavior) into clinical veterinary medicine, focusing on how behavioral health is now considered as critical as physical health for animal welfare. Core Concepts in Animal Behavior

Understanding why animals act the way they do is the foundation of behavioral science.

Categories of Behavior: Behaviors are generally classified as either innate (instinctual) or learned (through conditioning, imprinting, or imitation).

The "Four Fs": A classic mnemonic for the primary drivers of animal behavior: Fighting, Fleeing, Feeding, and Reproduction.

Motivation: Animals typically repeat behaviors that are rewarding and avoid those that make them feel bad, rather than following a human-like moral code. The Role of Behavioral Medicine in Veterinary Practice

Veterinarians use behavioral insights to improve diagnostics and patient care. The Science of Animal Behavior and Welfare - Frontiers

Dr. Aris Thorne didn’t look at the golden retriever on his exam table; he looked at the data streaming across his tablet. In the world of modern veterinary science

, the "silent patient" was finally starting to speak—not in barks, but in biomarkers The dog, a ten-year-old named

, appeared perfectly fine to the untrained eye. He wagged his tail and accepted a treat with the usual enthusiasm. But Barnaby’s wearable collar, embedded with AI-driven sensors

, told a different story. Over the last three weeks, the frequency of his "repositioning" during sleep had spiked by 22%, and his gait symmetry had shifted by a fraction of a millimeter—subtle changes in animal behavior that even the most observant owner would miss.

"It’s early-stage osteoarthritis," Aris explained to Barnaby’s owner, pointing to a

of the dog’s movement patterns. "In the past, we wouldn’t have seen this until he was visibly limping. Now, we can intervene before he’s even in consistent pain." This was the new frontier of

—the study of animal behavior—merged with high-tech diagnostics. Aris spent his afternoons at the city zoo, using similar computer vision zoofilia abotonada anal con perro

systems to monitor the social dynamics of the chimpanzee troop. By analyzing their vocalizations and "grooming clusters" through unsupervised machine learning

, he could predict a respiratory outbreak days before a single sneeze was heard, or identify a shift in the alpha hierarchy that might lead to an injury.

"Science used to be about what we could see," Aris thought, watching Barnaby trot out of the clinic. "Now, it's about what we can hear in the silence of the data." Through the integration of physiology and pathology

, the gap between understanding an animal’s "wants" and diagnosing its "needs" was finally closing.

The Bridge Between Mind and Medicine: Exploring Animal Behavior and Veterinary Science

For decades, veterinary medicine was primarily a mechanical pursuit: fix the broken leg, vaccinate against the virus, or manage the chronic kidney disease. However, as our understanding of the animal kingdom has evolved, the industry has undergone a paradigm shift. Today, the intersection of animal behavior and veterinary science is recognized as the cornerstone of modern animal welfare and clinical success.

By blending the biological rigour of medicine with the psychological insights of ethology (the study of animal behavior), we are finally seeing the "whole patient." Why Behavior is a Vital Sign

In a modern clinic, a patient’s emotional state is considered just as critical as their heart rate or temperature. This approach, often called "Fear Free" or "Low Stress" handling, posits that a terrified animal is a difficult-to-treat animal.

When an animal is stressed, its physiological markers change—cortisol spikes, heart rate increases, and blood glucose levels can fluctuate. This can mask underlying medical issues or lead to misdiagnosis. By applying behavioral science, veterinarians can utilize pheromone therapy, specialized handling techniques, and environmental modifications to ensure the patient remains calm, allowing for more accurate medical assessments. The Diagnostic Power of Behavior

Animals cannot speak, but they are never silent. Change in behavior is often the very first clinical sign of an internal medical problem.

Osteoarthritis: Often manifests not as a limp, but as irritability or a sudden reluctance to jump on a favorite sofa.

Hyperthyroidism: In cats, this frequently presents as sudden-onset hyperactivity or uncharacteristic vocalization.

Cognitive Dysfunction: Similar to dementia in humans, older dogs may show signs of disorientation or changes in social interaction.

Veterinary scientists now train specifically to distinguish between a "naughty" behavior and a "medical" behavior, ensuring that pets aren't punished for symptoms of physical pain. The Rise of Veterinary Behaviorists

This synergy has birthed a specialized field: the Board-Certified Veterinary Behaviorist. These professionals are the "psychiatrists" of the animal world. They hold a Doctorate in Veterinary Medicine but specialize in the complex relationship between neurological health and outward conduct.

They tackle severe issues like separation anxiety, inter-pet aggression, and obsessive-compulsive disorders using a combination of environmental management, behavior modification protocols (like desensitization), and, when necessary, psychotropic medications. Public Health and the Human-Animal Bond

The importance of this field extends beyond the exam room. Misunderstood animal behavior is a leading cause of "behavioral euthanasia" and shelter surrenders. By educating owners on why animals do what they do—whether it’s a dog’s prey drive or a cat’s need for vertical space—veterinary science helps preserve the human-animal bond, keeping pets in homes and out of shelters.

Furthermore, understanding behavior is crucial for zoonotic disease prevention. Recognizing the body language of a stressed or aggressive animal reduces the risk of bites and scratches, protecting both the veterinary staff and the general public. Conclusion: A Holistic Future

The marriage of animal behavior and veterinary science represents a more compassionate and effective era of care. By treating the mind and the body as a single, integrated system, we don't just help animals live longer; we help them live better.

The Bridge Between Mind and Medicine: The Synergy of Animal Behavior and Veterinary Science

For decades, veterinary medicine was primarily viewed through a clinical lens—focusing on vaccinations, surgeries, and physical diagnostics. However, the modern era of animal care has ushered in a more holistic approach. Today, the intersection of animal behavior and veterinary science is recognized as the gold standard for animal welfare, transforming how we diagnose, treat, and live alongside the creatures in our care. Understanding the Behavioral Vital Sign

In veterinary science, behavior is often the first "vital sign" to fluctuate. Unlike human patients, animals cannot verbalize their discomfort. Instead, they communicate through subtle shifts in posture, vocalization, and daily habits.

A cat that stops grooming or a dog that suddenly becomes aggressive isn't just "misbehaving"; they are often manifesting clinical symptoms. By integrating behavioral science into veterinary practice, clinicians can identify underlying issues—such as chronic pain, cognitive dysfunction, or metabolic imbalances—long before blood tests or X-rays reveal a physical abnormality. The Science of Low-Stress Handling

One of the most significant advancements in this field is the move toward "Fear Free" or low-stress handling techniques. Veterinary visits are historically stressful for animals, involving unfamiliar smells, loud noises, and physical restraint. This stress doesn't just impact the animal’s mental state; it skews clinical data. Cortisol spikes can elevate heart rates and blood glucose levels, leading to potential misdiagnoses.

Veterinary professionals now use behavioral principles to create a calmer environment:

Pheromone Therapy: Using synthetic scents (like Feliway or Adaptil) to signal safety.

Positive Reinforcement: Using high-value treats to create positive associations with medical equipment.

Body Language Literacy: Training staff to recognize early signs of fear or anxiety to adjust their approach before an animal reaches a breaking point. Behavior as a Diagnostic Tool

Animal behaviorists and veterinarians often work together to solve complex cases. For example, Separation Anxiety in dogs is a behavioral diagnosis, but its treatment often requires a pharmacological component managed by a veterinarian.

Conversely, physical ailments often have behavioral "red flags":

Litter box avoidance in cats is frequently a sign of feline lower urinary tract disease (FLUTD) rather than a spiteful habit.

Increased irritability in older horses may indicate the onset of arthritis or dental pain. Resources on animal welfare and laws about bestiality

Compulsive pacing in zoo animals can signal a lack of environmental enrichment, leading to physiological stress. The Role of Psychopharmacology

As our understanding of neurobiology grows, the use of behavior-modifying medications has become a sophisticated branch of veterinary science. We now understand that animals experience neurotransmitter imbalances similar to humans.

Veterinary behaviorists prescribe SSRIs, anxiolytics, and sedatives not to "drug" an animal into submission, but to lower their anxiety threshold. This allows the animal to reach a state where they are actually capable of learning new, positive behaviors through training. The Future: One Welfare

The synergy between behavior and medicine is culminating in the "One Welfare" concept. This framework recognizes that animal welfare, human wellbeing, and the environment are interconnected. When we solve a dog’s aggression through veterinary behavioral intervention, we aren't just helping the dog; we are ensuring the safety of the family and the stability of the human-animal bond. Conclusion

Animal behavior and veterinary science are two sides of the same coin. By treating the mind and the body as a single, integrated system, we move away from reactive medicine and toward a proactive, empathetic form of care. Whether it’s a house pet, a farm animal, or an endangered species in a sanctuary, understanding why they act is the key to knowing how to heal.

The Intersection of Animal Behavior and Veterinary Science: Understanding and Improving Animal Welfare

The study of animal behavior and veterinary science are two closely related fields that have gained significant attention in recent years. As our understanding of animal behavior and welfare continues to evolve, it has become increasingly clear that the two fields are inextricably linked. In this article, we will explore the intersection of animal behavior and veterinary science, and discuss the ways in which a comprehensive understanding of animal behavior can inform and improve veterinary practice.

The Importance of Animal Behavior in Veterinary Science

Animal behavior is a critical component of veterinary science, as it provides valuable insights into the physical and emotional well-being of animals. By understanding normal and abnormal animal behavior, veterinarians can diagnose and treat behavioral problems, as well as identify potential welfare issues. For example, changes in appetite, water intake, or elimination habits can be indicative of underlying medical issues, such as kidney disease or gastrointestinal problems.

In addition to its role in diagnosis and treatment, animal behavior also plays a critical role in the prevention of behavioral problems. By understanding the behavioral needs of animals, veterinarians can provide guidance on environmental enrichment, socialization, and training, all of which can help to prevent behavioral problems and promote animal welfare.

The Impact of Veterinary Science on Animal Behavior

Veterinary science also has a significant impact on animal behavior, particularly in the areas of animal handling and restraint. The way in which animals are handled and restrained can have a profound impact on their behavioral well-being, with gentle and considerate handling being essential for reducing stress and anxiety.

In addition to handling and restraint, veterinary science also plays a critical role in the management of behavioral problems. For example, veterinarians may use behavioral modification techniques, such as desensitization and counterconditioning, to address fear and anxiety-related behaviors. They may also prescribe medications, such as anxiolytics or antidepressants, to help manage behavioral problems.

The Role of Animal Behavior in Preventing Behavioral Problems

Preventing behavioral problems is a critical component of animal welfare, and animal behavior plays a key role in this process. By understanding the behavioral needs of animals, veterinarians can provide guidance on environmental enrichment, socialization, and training, all of which can help to prevent behavioral problems.

For example, providing animals with adequate exercise and mental stimulation can help to prevent boredom and stress-related behaviors, such as pacing, self-mutilation, or destructive behavior. Similarly, socialization and training can help to prevent fear and anxiety-related behaviors, such as aggression or avoidance behaviors.

The Intersection of Animal Behavior and Veterinary Science: A Holistic Approach

The intersection of animal behavior and veterinary science represents a holistic approach to animal care, one that takes into account the physical, emotional, and behavioral needs of animals. By combining a comprehensive understanding of animal behavior with veterinary science, veterinarians can provide optimal care for animals, promoting their welfare and well-being.

This holistic approach to animal care has significant implications for veterinary practice, as it highlights the need for veterinarians to be skilled in both veterinary science and animal behavior. By combining these two disciplines, veterinarians can provide comprehensive care for animals, addressing both their physical and behavioral needs.

Case Studies: The Intersection of Animal Behavior and Veterinary Science in Practice

The following case studies illustrate the intersection of animal behavior and veterinary science in practice:

Conclusion

The intersection of animal behavior and veterinary science represents a critical component of animal care, one that has significant implications for animal welfare and well-being. By combining a comprehensive understanding of animal behavior with veterinary science, veterinarians can provide optimal care for animals, promoting their physical, emotional, and behavioral well-being.

As our understanding of animal behavior and veterinary science continues to evolve, it is likely that the intersection of these two fields will become increasingly important. By recognizing the critical role that animal behavior plays in veterinary science, veterinarians can provide comprehensive care for animals, addressing both their physical and behavioral needs.

Future Directions

The future of animal behavior and veterinary science is likely to be shaped by a number of factors, including advances in technology, changes in societal attitudes towards animals, and the growing recognition of the importance of animal welfare.

Some potential future directions for the intersection of animal behavior and veterinary science include:

References

By combining a comprehensive understanding of animal behavior with veterinary science, veterinarians can provide optimal care for animals, promoting their physical, emotional, and behavioral well-being. As our understanding of animal behavior and veterinary science continues to evolve, it is likely that the intersection of these two fields will become increasingly important, shaping the future of animal care and welfare.

Introduction

Animal behavior and veterinary science are two closely related fields that aim to understand and improve the welfare of animals. Animal behavior is the study of the actions and reactions of animals in response to their environment, while veterinary science is the application of medical science to the health and well-being of animals. Together, these fields play a crucial role in promoting animal welfare, preventing disease, and improving human-animal relationships.

Importance of Animal Behavior in Veterinary Science Which of these would you like

Understanding animal behavior is essential in veterinary science for several reasons:

  1. Stress reduction: By recognizing and addressing behavioral stressors, veterinarians can reduce the stress associated with veterinary visits and procedures, making it easier to handle and treat animals.
  2. Accurate diagnosis: Observing an animal's behavior can help veterinarians diagnose underlying medical issues, such as pain or anxiety, which may not be immediately apparent through physical examination alone.
  3. Effective treatment: By understanding an animal's behavior, veterinarians can develop treatment plans that take into account the animal's behavioral needs and abilities, leading to more effective and humane care.
  4. Prevention of behavioral problems: Veterinarians can provide guidance on preventing behavioral problems, such as house soiling or aggression, by educating owners on animal behavior and providing advice on environmental enrichment and training.

Key Areas of Study in Animal Behavior and Veterinary Science

  1. Ethology: The study of animal behavior in its natural environment, including the observation of behavioral patterns, communication, and social behavior.
  2. Applied Animal Behavior: The practical application of animal behavior knowledge to improve animal welfare and address behavioral problems.
  3. Veterinary Behavioral Medicine: The study of behavioral problems in animals, including their causes, diagnosis, and treatment.
  4. Animal Welfare: The study of the well-being of animals, including the prevention of cruelty, neglect, and abuse.

Applications of Animal Behavior and Veterinary Science

  1. Veterinary practice: Understanding animal behavior informs veterinary practice, enabling veterinarians to provide more effective and compassionate care.
  2. Animal training and education: Knowledge of animal behavior is used to develop training programs for animals, improving their behavior and welfare.
  3. Conservation biology: Understanding animal behavior informs conservation efforts, helping to protect endangered species and preserve ecosystems.
  4. Human-animal interactions: Studying animal behavior and veterinary science informs our understanding of human-animal relationships, improving animal welfare and human well-being.

Current Research and Advances

  1. Animal emotions and cognition: Research on animal emotions, cognition, and consciousness is challenging traditional views of animal intelligence and sentience.
  2. Personalized medicine: Advances in veterinary medicine are enabling personalized treatment plans tailored to an individual animal's behavior, genetics, and environment.
  3. Technology and animal behavior: The use of technology, such as wearable sensors and artificial intelligence, is revolutionizing the study of animal behavior and veterinary science.
  4. One Health: The integration of human, animal, and environmental health is recognizing the interconnectedness of animal behavior, veterinary science, and human well-being.

Conclusion

Animal behavior and veterinary science are essential fields that improve the welfare of animals and enhance human-animal relationships. By understanding animal behavior, veterinarians can provide more effective and compassionate care, while advances in veterinary science inform our understanding of animal behavior and welfare. As research continues to evolve, we can expect new insights and innovations in animal behavior and veterinary science, ultimately improving the lives of animals and humans alike.

Animal Behavior:

Animal behavior is the study of the actions and reactions of animals in response to their environment, social interactions, and internal states. Understanding animal behavior is crucial in veterinary science, as it helps veterinarians and animal care professionals:

  1. Recognize abnormal behavior: Identifying changes in behavior can indicate underlying medical issues, stress, or welfare concerns.
  2. Provide enrichment and welfare: Enriching an animal's environment and social interactions can improve their well-being and reduce stress.
  3. Manage behavioral problems: Addressing behavioral issues, such as fear or aggression, can improve human-animal interactions and reduce the risk of injury.

Veterinary Science:

Veterinary science is the study of the health and disease of animals, with a focus on prevention, diagnosis, and treatment. Veterinary scientists:

  1. Investigate animal diseases: Understanding the causes, mechanisms, and consequences of animal diseases to develop effective treatments and prevention strategies.
  2. Develop diagnostic tools: Creating and refining diagnostic tests to accurately identify and monitor animal diseases.
  3. Improve animal health and welfare: Applying scientific knowledge to promote animal health, prevent disease, and enhance animal well-being.

Intersection of Animal Behavior and Veterinary Science:

The intersection of animal behavior and veterinary science is critical in understanding the complex relationships between animal behavior, health, and welfare. For example:

  1. Behavioral medicine: Understanding the behavioral aspects of animal disease, such as pain management and anxiety disorders.
  2. Animal welfare: Assessing and addressing animal welfare concerns, such as stress, discomfort, and distress.
  3. Conservation biology: Studying the behavior and ecology of endangered species to inform conservation efforts.

Current Research and Applications:

Current research and applications in animal behavior and veterinary science include:

  1. Animal-assisted interventions: Investigating the benefits and risks of using animals in therapeutic settings.
  2. Precision medicine: Developing tailored treatments and diagnostic tools for individual animals or populations.
  3. One Health: Exploring the interconnectedness of human, animal, and environmental health.

Career Opportunities:

Graduates with expertise in animal behavior and veterinary science can pursue careers in:

  1. Veterinary medicine: Working as veterinarians, veterinary researchers, or animal health professionals.
  2. Animal behavior consulting: Providing behavioral advice and guidance to animal owners and organizations.
  3. Research and academia: Conducting research, teaching, and mentoring students in animal behavior and veterinary science.

Key Journals and Resources:

Some key journals and resources in animal behavior and veterinary science include:

  1. Journal of Animal Behavior
  2. Veterinary Science Journal
  3. Animal Welfare Journal
  4. American Veterinary Medical Association (AVMA)
  5. International Association of Animal Behavior Consultants (IAABC)

Since you haven't specified a particular topic within this broad field, I have written a comprehensive sample paper that explores the intersection of these two disciplines. This paper focuses on the "medicinal" shift in veterinary practice—moving from purely physical examinations to a holistic model that incorporates ethology (animal behavior).


Title: Beyond the Physical Exam: The Integral Role of Applied Ethology in Modern Veterinary Science Date: October 26, 2023 Subject: Veterinary Medicine / Animal Behavior

2. The Physiology of Stress: Confounding Clinical Diagnosis

One of the most significant intersections of behavior and medicine is the physiological impact of stress. In the clinical setting, an animal's fear response triggers the hypothalamic-pituitary-adrenal (HPA) axis. The release of catecholamines (epinephrine and norepinephrine) and cortisol induces immediate physiological changes that can mimic disease or mask underlying conditions.

2.1 Cardiovascular and Respiratory Parameters Fear-induced tachycardia (elevated heart rate) and tachypnea (elevated respiratory rate) are common in clinical settings. In a dog with underlying cardiac disease, the stress of examination can precipitate a crisis that does not reflect the animal's resting state. Conversely, a healthy cat may exhibit a heart rate of 220 beats per minute due solely to fear, leading to unnecessary cardiac workups. Distinguishing between pathology and behavioral response requires an understanding of fear body language (e.g., dilated pupils, panting in cats, whale eye).

2.2 Hematological Variations Stress leukogram is a well-documented phenomenon in veterinary hematology. In stressed animals, particularly cats, cortisol causes a shift in white blood cell distribution, resulting in neutrophilia and lymphopenia. Without a behavioral context, a veterinarian might erroneously diagnose a bacterial infection, prescribing unnecessary antibiotics. Recognizing the behavioral state of the patient during blood collection allows for accurate interpretation of these results.

VIII. Pharmacological Interventions for Behavior (The Veterinary Psychopharmacopeia)

| Drug Class | Example | Use Case | Vet Consideration | | :--- | :--- | :--- | :--- | | SSRIs | Fluoxetine (Reconcile®) | Canine separation anxiety, compulsive disorders | 4-6 wk onset; cannot stop abruptly | | SARI | Trazodone | Situational anxiety (fireworks, vet visit) | Short-acting; can cause dysphoria in some | | TCA | Clomipramine (Clomicalm®) | Separation anxiety, OCD | Anticholinergic side effects | | α-2 agonist | Dexmedetomidine (Sileo®) | Noise aversion (dogs) | Oromucosal gel; do not use with NSAIDs | | NMDA antagonist | Memantine + Fluoxetine | Canine compulsive disorder (refractory) | Off-label; requires specialist |

Note: Emphasize behavioral modification is required alongside drugs – pharmacology enables learning, it does not teach it.

The Two-Way Street: Medical Causes of Behavioral Disorders

The most critical contribution of veterinary science to animal behavior is the recognition that many behavioral disorders have an underlying medical etiology. This has led to the development of systematic diagnostic protocols for behavioral cases. Common medical differentials for behavioral changes include:

Conversely, the study of behavior has illuminated medical mysteries. For instance, the observation that dogs with “fly-snapping” syndrome (snapping at invisible objects) often respond to anti-epileptic medication led to the discovery of a form of focal seizure disorder.

III. Behavioral Etiology of Medical Disease (How Behavior Causes Sickness)

Behavior isn't just a symptom; it's a pathogen.

IX. Ethical & Professional Considerations

Part II: The Physiology of Fear – How Behavior Impacts Health

To understand the marriage of behavior and veterinary science, one must first understand the hypothalamic-pituitary-adrenal (HPA) axis. When an animal perceives a threat—a loud noise, a strange smell, a needle—its brain triggers a cascade of hormones, including cortisol and adrenaline. In a wild setting, this "fight or flight" response is fleeting. In a veterinary clinic, for many animals, it is sustained and repeated.

Chronic or acute stress has direct medical consequences:

The takeaway is revolutionary: a fearful patient is a sick patient, even if it has no underlying organic disease. Conversely, a calm patient provides more accurate diagnostic data, recovers faster, and requires less chemical restraint. This is the core argument for behavioral integration.

Integrating Animal Behavior into Veterinary Science: A Holistic Approach to Health and Welfare