Spinal cord findings could help explain origins of limb control

Researchers have found that the spinal cord circuits that produce body bending in swimming fish are more complicated than previously thought. In a study of zebrafish, they report that differential control of an animal's musculature -- the basic template for controlling more complex limbs, such as in humans -- is already in place in the spinal networks of simple fish. The data could help clarify how vertebrates made the transition from water to land.http://feeds.sciencedaily.com/~r/sciencedaily/~3/v...