Learn how to survive in a pool of leeches.

Did you know that leeches are both bloodsuckers and predators, capable of eating small worms whole? Read here to learn more!

You’re looking at Ozobranchus jantseanus, a little leech found in East Asia. It doesn’t look much, but it has a very special skill indeed: it can survive for up to 24 hours immersed in liquid nitrogen ...