This infamous creature turns player forgetfulness into horror — but it’s so effective you can only run it once.

The Hydra can regenerate its entire body from a few hundred cells. These animals could give us insight into wound healing and the ability to grow new tissues, organs or limbs. (Photo credit: Stefan ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Hydra, specifically Hydra vulgaris, are unassuming creatures. At ...