extinction, prehistory, study

Oxygen Depletion in Ancient Oceans Caused Major Mass Extinction

Late in the prehistoric Silurian Period, around 420 million years ago, a devastating mass extinction event wiped 23 percent of all marine animals from the face of the planet. For years, scientists struggled to connect a mechanism to this mass extinction, one of the 10 most dramatic ever recorded in Earth’s history. Now, researchers from ...

Troy Oakes

Two assistant professors and a graduate student.

A Very Rare Turtle Just Died, Pushing the Species Close to Extinction

On April 12, a female Yangtze giant softshell turtle died in the Suzhou Shangfangshan Forest Zoo at the age of 90. She was only one of four of her kind that is known to exist. With her death, there are only three Yangtze giant softshell turtles alive right now, essentially bringing the species closer to ...

Armin Auctor

Trees growing in a shallow lake.

Small Carnivorous Marsupial Back From Extinction

The small carnivorous marsupial, known only from fossilized bone fragments called a crest-tailed mulgara, (Dasycercus cristicauda) has been extinct in New South Wales (NSW), Australia, for more than a century. Well, that’s before discovering it in the Sturt National Park, northwest of Tibooburra. The unexpected discovery was made by a team from the University of New South ...

Troy Oakes

A Crest-tailed Mulgara.