Like the sentient toys in Toy Story, animals seem to lead exciting lives when humans aren’t watching. Ancient creatures called Hydra, on the other hand, don’t seem to do much at all. But that’s what ...

Researchers show how an algorithm for filtering spam can learn to pick out, from hours of video footage, the full behavioral repertoire of tiny, pond-dwelling Hydra. By comparing Hydra's behaviors to ...

WOODS HOLE, Mass. -- Accomplishing perhaps a world first, researchers at Columbia University and the Marine Biological Laboratory (MBL) have mapped the full-body muscular activity of an animal while ...

WOODS HOLE, Mass. -- Although it may seem counterintuitive, researchers are turning to an animal without a brain to crack the neural code underlying behavior. Hydra vulgaris, a tiny, tentacled, ...

Much of what biologists have learned about animal behavior over the years has come from careful observation and painstaking notes. There could soon be an easier way. In a new study in the journal ...

Three environmental zones which can influence the activation of the feeding response of Hydra littoralis are termed the macro-, micro-, and ultramicro- environment. The first consists primarily of the ...