In 2000, researchers described an odd fossil found not far from Chicago. It had a round body, finlike structures on one end and a tangle of arms. The fossil was classified as an octopus and named ...

A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to ...

Goblet-shaped sea jelly relatives with miniature “arms.” A plump, legless creature resembling a sausage. Long, wormlike animals tipped with flat “holdfast” discs for anchoring to the seafloor.

More than two decades after scientists identified a fossil as the world's oldest octopus — officials now say it wasn't one at all. A recent study published in the journal Proceedings of the Royal ...

More than two decades after scientists identified a fossil as the world’s oldest octopus — officials now say it wasn’t one at all. A recent study published in the journal Proceedings of the Royal ...

Between 280 and 200 million years ago, a group of animals evolved which would eventually give rise to mammals, including humans: the therapsids. They were first described more than 150 years ago, ...

A badly mangled dinosaur skull, once forgotten in a drawer, turned out to be a rare and important discovery. Reconstructed by a Virginia Tech student, it revealed a new species of early carnivorous ...

Thousands of years ago in a cave on Hispaniola, an unusual chain of events left behind a rare scientific treasure: bees nesting inside fossilized bones. After giant barn owls repeatedly brought prey ...

Fossil fuels remain a dominant energy source for vehicles, electricity, and manufacturing. Global production of coal and petroleum is increasing to meet current and future energy demands. The growth ...

A groundbreaking discovery of fossils has provided scientists with an unprecedented insight into a pivotal moment in Earth's history: the transition from rudimentary plant and animal life to the ...

Researchers studying a 250-million-year-old fossil have found the first ever proof that mammal ancestors laid eggs, with the discovery also shedding light on a remarkable survival story. The fossil, ...

WASHINGTON (AP) — Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures ...