what is a hydra? Share with your friends Share 0 Mushtaq Ahmed answered this Hydra is a small animal that is found in fresh water like ponds. It has long, thin and mobile structures called tentacles on the body that help it to move and capture food. 0 View Full Answer Aman Syed answered this Hydra is aminute freshwater coelenterate with a stalk-like tubular body and a ring of tentacles around the mouth. 0