2019年5月23日 · There are several differences between avian and non-avian dinosaurs including their extinction, bone structure, and metabolic processes.

The present scientific consensus is that birds are a group of maniraptoran theropod dinosaurs that originated during the Mesozoic era. A close relationship between birds and dinosaurs was first …

Avialae ("bird wings") is a clade containing the only living dinosaurs, the birds, and their closest relatives. It is usually defined as all theropod dinosaurs more closely related to birds (Aves) …

Our palaeontologist Professor Paul Barrett explains how this understanding of dinosaur evolution is transforming the way scientists think. Birds that fill the world’s skies today are living …

Birds are living dinosaurs. Watch our animation to find out what about birds allowed them to survive the Cretaceous extinction when all other dinosaurs died out.

6 天之前 · A recent fossil find fills in a glaring prehistoric bird gap. The Jurassic period claims Archaeopteryx (sometimes called adeinonychosaurian dinosaur), which, despite their …

2025年1月22日 · The rich Mesozoic fossil record of stem-group birds (including pterosaurs, non-avian dinosaurs and non-neornithine avialans) is the place to turn for insights into the …

Using proper terminology, birds are avian dinosaurs; other dinosaurs are non-avian dinosaurs, and (strange as it may sound) birds are technically considered reptiles. Overly technical? Just …

2025年2月7日 · Benson, R. B. J. et al. Rates of dinosaur body mass evolution indicate 170 million years of sustained ecological innovation on the avian stem lineage. PLoS Biol. 12 , e1001853 …

2025年2月7日 · The skull is from Vegavis iaai, an extinct duck-like bird that lived during the Late Cretaceous, just before non-avian dinosaurs went extinct. It’s one of very few 3D bird skulls …