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Hot Extinctions

November 15, 2007

Warmer temperatures have consistently preceded more extinctions throughout Earth's history.

November 14, 2007

Physicists study how headphone cords tie themselves in knots.

November 13, 2007

A sneaky snail evades predators by creating a unique form of organic camouflage.

November 9, 2007

When plants heat things up. How dolphins sleep. "Healthy" restaurants that aren't. Army ant …

November 6, 2007

Scientists have grown inner ear "hair" cells in the laboratory.

November 2, 2007

How spiders avoid getting caught. Plastic that's as strong as steel. A purpose for the appendix? And …

November 1, 2007

Engineers have created a plastic that's as strong as steel, but lighter.

October 26, 2007

Two tiny organisms team up to brew a deadly toxin.

October 26, 2007

Chewing gum that's not sticky. Worms and bacteria team up. Some very hairy genetics. And more.

October 25, 2007

A listener asks: How are rainbows made?

October 24, 2007

Woolly mammoths went extinct thousands of years ago. But now their genetic past is being resurrected …