Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. For a group of small aquatic animals known as hydra, decapitation is ...

In ancient Greek myth, the Hydra was a multi-headed monster that grew two more heads for every one that it lost. As it turns out, the real-life animal named after this mythical beast may be even more ...

SAN DIEGO, March 8 (UPI) --Researchers have revealed the method by which a hydra opens its mouth to consume food. In order to open wide, the tiny freshwater animal splits apart its face. Hydra is a ...

In the absence of eyes, the fresh water polyp, Hydra magnipapillata, nevertheless reacts to light. They are diurnal, hunting during the day, and are known to move, looping end over end, or contract, ...