Galápagos plants show repeated evolution and emerging species, emphasizing evolution’s flexibility and active role today.

A 100-million-year-old fossil of Najash rionegrina from Argentina reveals early snakes retained hind legs and a cheekbone absent in modern species. The discovery challenges the long-held belief that ...

Yet modern biology has revealed that cells are preternaturally sophisticated assemblages — literally automated, miniaturized factories. How could the evidence have been overwhelming but now orthodoxy ...

A nearly complete 90-million-year-old dinosaur fossil, Alnashetri cerropoliciensis, is turning evolutionary theories upside ...

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CHAMPAIGN, Ill. Life did not begin with one primordial cell. Instead, there were initially at least three simple types of loosely constructed cellular organizations. They swam in a pool of genes, ...

Ironically, one great unsolved problem in Darwin's master work, On the Origin of Species, was just that: How and why do species originate? Darwin and his later followers were faced with a seeming ...

In 1859, Charles Darwin’s theory of evolution was postulated in “On the Origin of Species.” In this theory, Darwin suggested ...

It made for great oratory between eminent rivals, and it put the debate over teaching evolution on front pages across the country. But one thing the Scopes "monkey trial" of 1925 did not do was settle ...

Albert Anderson says "the presence of numerous sauropod eggshells in Patagonia is certainly evidence that sauropods existed but not necessarily that they evolved," 1,2 while Gina Kolata in The New ...