Giant Snake
A super-sized snake in prehistoric Colombia tells scientists about the future of global warming.
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Fat Feedback
Fat cells communicate with the brain to regulate how much we burn.
Aging Proteins
Research in rodents suggests that some animals' proteins are more resistant to age-related stress.
Evolution of Conscience
Hunting and gathering in pre-historic times may have led to the evolution of the conscience.
Mosquito Duets
Mosquitoes tune their voices to one another during courtship.
Emerging Infections
New global diseases are emerging faster than at any other time in human history.
Behind Kissing
The evolutionary roots of kissing are a bit less romantic than you might think.