These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our ...

A devastating ice age wiped out most marine life, yet new research reveals how this ancient disaster unexpectedly paved the ...

A tiny fossil fish from Alberta is forcing scientists to rethink a story that has sat quietly in textbooks for decades.

Buried in Australia's so-called dead heart, a trove of exceptional fossils, including those of trapdoor spiders, giant ...

During these waves of mass extinction, most vertebrate survivors were confined to refugia, or isolated biodiversity hotspots ...

A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems.

Our bones did not begin deep inside the body. They started in the skin, not long after the first complex animals took shape.

Over the past half century, researchers have established that birds evolved from dinosaurs: specifically, the theropods, the ...

A massive ice age wiped out ocean life 445 million years ago, reshaping ecosystems and setting the stage for jawed fish ...

The agency wants to curtail a section of the Clean Water Act that Democratic governors have used to restrict fossil fuel ...

About 445 million years ago, Earth nearly wiped out life in the oceans. Glaciers spread across the supercontinent Gondwana, ...