A new study reveals what caused most life on Earth to die out during the end-Permian extinction, also known as the Great Dying.

A reversal in Earth's magnetic field 42,000 years ago triggered climate catastrophes and mass extinctions. Can the field flip again?

Rocks from two hundred million years ago show us how everything died and how nothing is new.

If Arctic ice continues to melt at its projected rate, the bears will go extinct due to starvation by the end of the century according to a first-ever projected timeline.

Scientists discovered footprints made by some of the largest creatures ever to walk the Earth.

Australia's beloved and bizarre egg-laying mammal could start vanishing in coming years if current trends continue.

By wiping out 1 million species, we are hastening our own extinction.

How can we stop extinction? One solution scientists have been developing for decades is de-extinction — the process of resurrecting extinct species through genetic engineering.  

One day, we might be able to say that the dog saved the cheetah from extinction.  

Harvard scientists say they are two years away from creating a hybrid embryo with mammoth traits.

A new study may explain why the Australian megafauna went extinct around 45,000 years ago.

Cheetahs and giraffes have been placed on the conservation "red list" due to collapsing populations.

The U.S. Fish and Wildlife Service believes a species of bumble bee – the rusty patched bumble bee – should be under federal protection under the Endangered Species Act.