Prehistoric World, Prehistoric Time, Photos Videos, Maps, Facts, Images, and More -- National Geographic

Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-billion-year history. Learn more about the planet's tumultuous past.

Prehistoric Time Line

National Geographic's interactive time line takes you on a 4.5-billion-year-old trip through Earth's history⎯from its Precambrian birth to the birth of Homo sapiens some 190,000 years ago.
Photo Gallery: Jurassic Period

The Jurassic period ushered in a wealth of new dinosaurs⎯from the armored Stegosaurus to the meat-eater Allosaurus. Take a look at these Jurassic giants.
Big Bad Bizarre Dinosaurs

A bizarre gallery of Mesozoic monsters prompts John Updike to ask: What has evolution wrought?
Dinosaurs—Flesh and Bone

Step aside, bone diggers and fossil hunters, a new generation is using computer modeling and a better understanding of living animals to bring dinosaurs back to life—virtually.

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BlogWild

National Geographic explorers share tales (and photos) of their adventures.
Stones, Bones 'n Things

Go behind the scenes of new discoveries with National Geographic scientists.
Ocean Now

Join underwater explorer Enric Sala as he explores untouched reefs.

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