Literature Network » Charles Darwin

Darwin's rotifers; Evolution.(Charles Darwin )

Content courtesy of

From: The Economist (US)
Date: 20070324
Author:

An obscure group of invertebrates casts light on how new species form

WHEN Charles Darwin opened his first notebook on the subject of how organisms change over time, the field was not even referred to as "evolution". It was, rather, "the species problem"--in other words, how did life's variety arise? Darwin showed in detail how life changes over the course of time by the process of natural selection, but failed to explain how those changes can take different courses, dividing a species in two and thus multiplying the number of species.

The two main schools of thought ...

Read the rest of this article with a Free Trial at HighBeam Research.

Other Articles on Charles Darwin

About Our Articles: We've partnered with Highbeam Research to provide these article excerpts for your research needs. However, due to copyright laws, we cannot publish the whole article. To view these articles in full length you'll need to use the link above to access the free trial at Highbeam.