Darwin's view of the evolutionary tree is beautifully expressed in the ... But, is the goldfish an ancestor of any living tetrapod? And is the howler monkey really an ancestor of you or any ...

If you want to see concrete evidence of evolution, look no further than your ... That for whatever prehistoric reasons, an ancestral tetrapod had five digits per limb, and all of its descendants ...

Transitional fossils help scientists bridge gaps in the tree of life, resulting in a picture of gradual evolution over millions of years.