Prehistoric Animals, Dinosaurs - National Geographic

Bizarre Dinosaurs

A bizarre gallery of Mesozoic monsters prompts John Updike to ask: What has evolution wrought?
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.
Prehistoric World

Discover and explore prehistoric times with galleries, time lines, quizzes, and more.
Mass Extinctions

More than 90 percent of all organisms that have ever lived on Earth are extinct. Learn how millions of creatures can disappear in a geological blink of an eye—and see what might be next.
Photo Gallery: Permian Period

Peer into the flourishing world of the Permian, when a wealth of new animals appeared⎯before nearly all life on Earth was wiped out in a mass extinction.

Tarzan Chameleon Found

The discovery on Madagascar of the new species—given away by its flat snout—is a "Tarzan yell for conservation," a new study says.
Lizard Evolving for Live Birth

A skink species lays eggs on coasts but births babies in mountains, giving a glimpse of how placentas evolved, scientists say.

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