In the natural world, do “bold” individuals — those willing to take risks — always live fast and die young? A new study in ...

Wildlife conservation often relies on population counts, but stable numbers can hide widespread suffering. Research argues that true welfare depends on individual animals’ daily experiences, not just ...

A new project from Penn’s School of Veterinary Medicine looks to document how animals live and move across Philadelphia’s urban landscape. Led by Penn Vet ecologist and professor Julie Ellis, the ...

Animals don't just see the world differently from one another, they experience time itself at dramatically different speeds. That is according to a new study that considered 237 species across the ...