A tree-climbing scientist takes the measure of a 3,200-year-old, 247-foot-tall sequoia.
National Geographic on TV: Big Cat Week
Find out why you shouldn’t panic—at least, not yet.
Once heavily hunted for its valuable skin but now protected, Brazil's yacare caiman is striding back in gratifying numbers.
Visions: Your Shot
Next: Jellyfish Currents
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In 1418 the town fathers of Florence finally addressed a monumental problem they’d been ignoring for decades: the enormous hole in the roof of their cathedral. Season after season, the winter rains and summer sun had streamed in over Santa Maria del Fiore’s high altar—o
The Innovators Project
Meet some of science's most important movers and shakers—from past and present.
How to Feed Our Growing Planet
National Geographic explores how we can feed the growing population without overwhelming the planet in our food series.