Whether it’s a puppy learning to navigate a human world or a zoo elephant receiving enrichment, the synergy of behavior and medicine ensures that animals don't just survive, but thrive.

Leave the cat carrier out 365 days a year. Feed meals inside it. When vet day comes, the carrier predicts food, not a car ride. At the clinic, ask for a "dark, quiet room" with a Feliway diffuser before the exam.

This approach led to a silent crisis in the industry. Misdiagnoses were rampant because veterinarians failed to account for stress-induced physiological changes. A cat with a high heart rate and glucose levels wasn't necessarily diabetic; she might have simply been terrified of the clinic. Furthermore, compliance plummeted. A dog owner given a pill for arthritis will stop giving it if the dog growls or hides every time the bottle comes out, viewing the owner as a threat.

: A fascinating study published in Science and highlighted by TIME reveals that crows can actually count out loud. Researchers trained crows to emit a specific number of "caws" (one to four) in response to visual or auditory cues, demonstrating numeracy skills comparable to human toddlers.