The behavior, which had never been observed before, stunned scientists as, typically, the larger house spider would prey on ...

So many Mexican free-tail bats fly out of the Bracken Bat Cave on a summer evening that their spiral path creates a vortex of rising air that helps lift the bats, drawing out even more. In a few hours ...

New videos reveal the surprising dynamics of bat-rat relationships—and suggest how human activity is fueling these interspecies conflicts.