Ancient amphibians evolved a bite before migrating to dry land
...living fish to those of early amphibians and their fishy ancestors, we were able to determine whether the f...l fossils -- the early amphibian Acanthostega, its fishy ancestor Eusthenopteron, and the extinct terrestrial amphibian Phonerpeton -- to determine how these...UF scientists discover evolutionary origin of fins, limbs
...y roots in the dorsal, caudal and anal fins of our fishy ancestors." Many of these genetic mechanisms are involved in human birth defects, which provide insight into the evolutionary history of genes and their functions. "Knowing that many of these genes are responsible for limb defects in humans is in......as their ability to sense electrical fields. "Our fishy ancestors had the anatomy for it," said James Albert, aformer UF biologist who is now at the University of Louisiana. "You can imagine how valuable this system would be if you were aquatic, because water is so conductive. But it doesn't work on land ...