Evolution
Why Darwin Needs ET
Finding life on other worlds will help answer lingering questions about natural selection.
Faster Evolution on a Warmer Earth
When life first emerged roughly 4 billion years ago, DNA may have been a much more malleable molecule.
New Lizard Shows Evolution’s Predictability
A new anole on the island of Hispaniola confirms that ecological communities can follow predictable patterns.
The Martians Are Coming—and They’re Human
How settling Mars could create a new human species.