Charles Darwins On the Origin of Species is best known for explaining evolution by natural selection, but it also offers a broader life lesson through the line, “The shield may be as important for ...

The origin of the Origin / Michael Ruse -- Darwin's analogy between artificial and natural selection in the origin of species / Mark A. Largent -- Variation and inheritance / Robert Olby -- Darwin's ...

When on board H.M.S. Beagle, as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geological relations of the present to the past ...

The idea of a species is fundamental to the way that many people understand the structure of life on Earth. But ask 10 specialists how they define the concept and you might get 10 answers. In this ...

A team from the University of Illinois has uncovered surprising evolutionary links between the genetic code and tiny protein fragments called dipeptides. By analyzing billions of dipeptide sequences ...