A jellyfish-like creature with tentacles and seeming ability to live forever has now been found capable of passing cancerous tumors on to its offspring. Government scientists in France who studied ...

The hydra is a Lovecraftian-looking microorganism with a mouth surrounded by tentacles on one end, an elongated body, and a foot on the other end. It has no brain or centralized nervous system.

With lifespans stretching far beyond human comprehension, creatures like the hydra, Greenland shark and Aldabra tortoise don’t experience the urgency of time that fast-living species do. There are ...