Evolution is often portrayed as stepping toward ever-greater complexity, but the natural world is filled with examples of organisms actually reverting back to a previous evolutionary state. A new ...

In his book, Wonderful World, Stephen Jay Gould writes about an experiment of 'replaying life's tape', wherein one could go back in time, let the tape of life play again and see if 'the repetition ...

SEATTLE – Evolution is supposed to inch forward over eons, but sometimes, at least in the case of a little fish called the threespine stickleback, the process can go in relative warp-speed reverse, ...

There’s no denying that Charles Darwin gave the world some of the most practical laws of existence, and for ages we all have seen how these simple laws have defined life and survival, but there’s one ...