The Oldest Laurasian Dinosaur: New Discovery Rewrites Dinosaur Origin Story
The discovery of Ahvaytum bahndooiveche, a 230-million-year-old dinosaur in Wyoming, reveals dinosaurs existed in the ...
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Kangaroo species went extinct in the Pleistocene. Research hops in with a possible explanation.
In a mass extinction event some 40,000 years ago, Australia lost 90% of its large species, including nearly two dozen kinds ...