In this slide show, see how a dying star is reborn as a black hole. Produced by WGBH/Nova.

Crocodiles are not the only crocodilians. There are also caiman, gavials, and of course alligators. All told, these hardy reptiles are found in 91 countries—from Belize’s freshwater pools, where Morelet’s crocodile lurks, to the marshy riverbeds of China’s Yangtze River, … Continue reading

Imagine you’re at a hot air balloon event. The balloonists are busy preparing for flight. They spread out the enormous balloons on the grass and check all the lines. The talk is all about today’s temperature, wind speed, and direction. … Continue reading

In this feature, you’re presented with five bowers. As you match each bower to its male owner and the male to its typically much drabber-looking mate, you’ll find out about some of the birds’ unusual behaviors. Produced by WGBH/Nova.

This Hot Science lets you assemble your own tree-ring chronology. You’ll start with a tree-ring sample from a living tree and, using other samples, piece together a pattern of rings that stretches back through time. Produced by WGBH/Nova.

Test knowledge of the coelacanth’s history, habitat, anatomy, reproduction and characteristics with this interactive online quiz. Produced by WGBH/Nova.

Identify the different parts of the brain and how each functions. Determine how brain injuries change or impede brain function. Produced by WGBH/Nova.

Learn about the anatomy of glaciers through this interactive resource. Produced by WNET/Nature.

Explore an actual stretch of human DNA and see what the experts see. Produced by WGBH/Nova.

Darwin’s theory still remains the basis for the study of atoll evolution. What is this theory of atoll evolution? Take a look at the following presentation to find out. Produced by WGBH/Nova.

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