Crinoids can Run?

[swestrup]

As someone who is interested in alien physiology and what biomechanics has to say about ways of getting around, I was pleased and astonished to discover that Sea Lillies, a type of Crinoid, can run. It seems that this has also astonished a number of marine biologists who thought this species of animal could only slowly creep along.

Comments

[swestrup]

Yeah, the animated gif and .mov at that site show one moving at a (relatively) astonishing clip.