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mass extinction

At an outcrop north of Sydney, Australia, the research team unearths a rock covered in fossil leaves of the extinct ‘seed fern’ Dicroidium.

Plants struggled for millions of years after the world’s worst climate catastrophe

African clawed frog

Ancient Amphibians Feasted Their Way Through Earth’s Greatest Apocalypse

Artist's impression of the asteroid slamming into tropical, shallow seas of the sulfur-rich Yucatán Peninsula in what is today Southeast Mexico. The aftermath of the asteroid collision, which occurred approximately 66 million years ago, is believed to have caused the mass extinction of non-avian dinosaurs and many other species on Earth. The impact spewed hundreds of billions of tons of sulfur into the atmosphere, producing a worldwide blackout and freezing temperatures which persisted for at least a decade.

Asteroid That Killed the Dinosaurs: New Study Reveals Its Unlikely Origin

Irridescent birds

Asteroid Impact Sparked Rapid Evolution in Bird Genomes, Study Reveals

Life reconstruction of the ancient mammal relative Thrinaxodon from the Triassic Period of Earth history. Similar in size and shape to a modern mink, Thrinaxodon is close to the inferred size of the ancestor of the group of ancient mammal relatives called cynodonts, and it shared that ancestor’s likely preference for animal food. Image by April Neander.

Survival of the newest: the mammals that survive mass extinctions aren’t as “boring” as scientists thought

The impacts of ozone depletion and elevated UV-B levels on the terrestrial ecosystem

Fossil pollen ‘sunscreen’ proves role of ozone depletion in largest mass extinction

Lemurs drinking water

Extinction cascades will wipe out more than a quarter of world biodiversity

Diorama depicting Ediacaran-era sea creatures. (Smithsonioan Institution)

Earth might be experiencing 7th mass extinction, not 6th

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