Revising Darwin's thinking on invasive species

For more than a century and a half, researchers interested in invasive species have looked to Charles Darwin and what has come to be called his "naturalization conundrum."

There's no floating brains in space

Scientists have put to bed a theory about space brains, which will be a great relief to those who have trouble sleeping over such matters.

Can fMRI scans show what your dog is thinking?

Emory University researchers have begun a project to scan the brains of alert dogs using functional Magnetic Resonance Imaging (fMRI) and see how they react to hand signals from their owners.