Thursday, January 8, 2015

Tardigrades (Water Bears!)

This is a tardigrade (also known as a water bear or a moss piglet!), a REALLY cool aquatic invertebrate.  It's one of my favorite organisms.  Yes, this is a real image of one.  Here are some facts about them:
  • They are about the size of a poppy seed (1.5 mm).
  • They were first described by a German pastor named J.A.E. Goeze in 1773.
  • They can be found in just about every habitat on Earth. 
  • They are extremophiles.  They can survive in boiling water, solid ice, and in outer space (without oxygen)!  Find out how here.