From this one migrant species would come many -- at least 13 species of finch evolving from the single ancestor. This process in which one species gives rise to multiple species that exploit ...

Their appearance pushes back amniotes evolution by 35-40 million years.Between 359 and 350 million years ago, it rained. Lizard-like creatures crawled through the mud in what was once Gondwana (but is ...

The birds have been named for Darwin, in part, because he later theorized that the 13 distinct species were all descendants of a common ancestor. Each species eats a different type of food and has ...

The Galápagos finches are a classic example of adaptive radiation. Their common ancestor arrived on the islands a few million years ago. Since then, a single species has evolved into different species ...

After a brief rain in part of the ancient supercontinent of Gondwana 350 million years ago, a reptile pressed its small claws ...