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Around 300 million years ago sails were all the rage, but we're still not sure what they were for.
During the Permian Period many tetrapods, or four-limbed vertebrates, took to life in the trees.
Life begins to rebound after the destruction of the mass extinction ending the Permian Period.
An apocalypse ended the Permian Period 252 million years ago, wiping out more than 80% of species.
The first saber-teeth and tusks evolve in the Late Permian and our ancestors, the cynodonts, appear.
For millions of years after the Great Dying microbes ruled the Earth.
An extinction in the Middle Permian decimates life, from a fossil reef to our ancient relatives.
Seed plants and amniotes adapt to dry climates, helping them thrive on Pangea in the Permian Period.
How did Homotherium evolve to be so successful? The answer may lie in the rise of the Tibetan plate.
Extras
Theodore Roosevelt Presidential Library celebrates his commitment to conservation
News Wrap: U.S. providing visas to Bolsonaro and family after loss in Brazil's election
Inside Georgia's push to rebuild trust in elections after Trump's false claims
Poll gauges voter enthusiasm for both parties a week before election
Democrats put economy and affordability at center of final campaign push
Projections show no clear winner in Israel's election
School principal documents Indonesia's worst wildfires in a decade
Why Trump's coalition of evangelical voters could be fraying
Artemizia Foundation, A New Path Forward, Recycling is no mystery in Bisbee, Thuy’s Noodle Shop.
Appraisal: Victorian Slide Chain & Diamond Bracelet
The Permian began with the formation of a supercontinent and ended in the biggest extinction ever.
Camels' origins story begins in an environment you’d never expect: a rainforest.
The story of sloths is one of astounding ecological variability.
Not too long ago, our early human ancestors were under threat of attack from predators.