Learn more about a newly observed insect behavior in which smaller ants clean larger ants.

In the deserts of southeastern Arizona, harvester ants congregate with serrated jaws agape outside the nests of much smaller cone ants. However, the nests’ inhabitants are not threatened. Instead, ...

(A) Maze channel design, (B) guiding electric stimulation, (C) punishing electric stimulation, and (D) punishing heat stimulation. The lower-right image is a thermal image of the maze surface. The ...

On a dry day in Madagascar, hissing cockroaches do something unexpectedly sweet: they huddle together in slow-moving bundles of roach cuddles. A new study in Ethology shows these clusters aren't ...