Paul Andersen emphasizes the importance of cooperation in living systems. He starts with a brief description of game theory and why countries at peace do better over the long term. He then explains how microscopic cells cooperate in...

Every day, humans literally flush a valuable resource down the toilet: nitrogen. But there are some animals that have figured out a way to recycle the extra nitrogen in their bodies by moving it not to their livers, but to their mouths!

Explore the fascinating world of controlled regurgitation with Stevie Star's unusual talent and its parallels in the animal kingdom. Learn how this capability serves various purposes in nature, from cows re-chewing grass for digestion...