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Articles sur Fossils

Affichage de 21 à 40 de 281 articles

Tyrannosaurus rex spanned all of ancient North America, and about 20,000 lived at once. Roger Harris/Science Photo Library vie Getty Images

How many Tyrannosaurus rex walked the Earth?

Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.
A live reconstruction of Anteosaurus attacking a herbivorous Moschognathus. Artwork by Alex Bernardini @SimplexPaléo

New study reveals the secrets of an ancient, extinct super predator

Because of its skeleton’s heavy architecture, scientists have always assumed that Anteosaurus was a rather sluggish, slow-moving animal, only capable of scavenging or ambushing its prey, at best.
Whether in the wild or in the lab, worms have an interesting story to tell. Sinhyu/iStock via Getty Images

Why do scientists care about worms?

‘Worm’ is really a catchall term for a huge variety of animals with different characteristics that span the tree of life. They hold clues about our own origins as well as hints about human health.
Ilya Bobrovskiy

Ancient sponges or just algae? New research overturns chemical evidence for the earliest animals

Ancient fatty molecules, once believed to be traces of some of the first animals to live on Earth, may have been produced by algae instead.

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