|This crinoid is
swimming through the water by alternately raising one set
of arms while lowering another, in a flapping fashion.
Crinoids move very slowly on their own, but the current
provides plenty of additional movement.
Why do you think think movement is important to the survival of a modern crinoid? Visit the feather star page on the site "Welcome to the Cambrian: A Tour of the Origins of Animal Life" by Kerry B. Clark to find out.
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