Animals often get labeled as either predators or prey. But in the wild, survival isn’t always a one-animal job. Some species form partnerships that help them find food, avoid danger, or raise young.

There are not many true loners in the bird world. Many types of social birds—from sparrows to sandpipers and gulls to goldfinches—will gather in flocks of their own kind, or with other species that ...

Long before TikTok and probiotics, animals were teaching each other tips on feeling better, from swallowing leaves to get rid of parasites to using icebergs for exfoliation. In the early 2010s, ...