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Home > Science > Dinosaurs > Extinction

Dinosaurs and Extinction
Learn about the theories on why the dinosaurs became extinct. Includes information about the time periods.

In biology and ecology, extinction is the ceasing of existence of a species or group of taxons

Dinosaur Extinction
An article from Encyclopedia Britanica on the extinction of dinosaurs.

Dinosaur Extinction
Extinction is the process in which groups of organisms (species) die out. If the birth rate is less than the death rate over time, extinction results.

What Killed The Dinosaurs?
An article on what killed the dinosaurs.

Origins of the Impact and Volcano-Greenhouse Theories
Sixty-five million years ago, some phenomenon triggered mass extinctions on the lands and in the oceans. Read about the possible causes of the dinosaurs extinction.