Why prey animals (and even predators) are evolutionarily wired to act "fine" while sick.

A video opened: shaky footage of a city zoo at dusk. A zookeeper moved across the frame, feeding an old bear. But the audio was what stilled Jory—under the wind and the animal sounds, a voice read a list of names. Not names he knew, exactly, but ones that felt familiar like the first notes of a melody you can’t place. They were names of people from his town, people he’d seen at the market or passed on the bus. The voice spoke them plainly, then repeated them with a slow, deliberate cadence.

: Producers use behavioral insights to improve grazing efficiency and animal productivity. Conservation and Wildlife