ancestor

Newly discovered octopus ancestor had 10 arms | Science

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Ancient ‘Vampire’ Cephalopod From 330 Million Years Ago Is a First of Its Kind

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An exceptional fossil unearthed in Montana has given us the earliest known ancestor of vampire squids and octopuses. The cephalopod, belonging to the vampyropod or octopodiform superorder, pushes back the age of the group by about 82 million years.   This challenges our understanding that octopuses evolved from a Triassic ancestor. Fascinatingly, it has not eight, … Read more

Dinosaurs: Ancestor of long-necked Diplodocus ran swiftly on two legs

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The gigantic and slow sauropod dinosaurs like Diplodocus had small two-legged ancestors – and one, Thecodontosaurus, was quick and nimble 19 January 2022 By Christa Lesté-Lasserre Thecodontosaurus antiquus Stocktrek Images, Inc. / Alamy An early ancestor of large, long-necked, four-legged dinosaurs like Brachiosaurus and Diplodocus was a quick, nimble biped that probably used its forelimbs … Read more

Our earliest, ‘half-alive’ ancestor needed little boost from heat | Science

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How Earth changed from a lifeless ball of rock, water, and gases to a blue planet teeming with organisms is one of science’s greatest puzzles. Life had to assemble out of chemical building blocks about 4 billion years ago. Some scientists have invoked spectacular sources of energy for life’s spark, such as a comet impact … Read more