The 41-year-old female known as Nola saw her health take a quick turn for the worse.
The asteroid and volcanoes that did in the dinos was no match for a family of super tough beaver-like mammals.
Tiny structures in well-preserved remains point the way to an animal's pigment.
The deep-sea dweller, long thought extinct, has a vestigial lung lurking in its abdomen.
The only woolly rhinoceros infant specimen ever found has its time of death more accurately fixed after an autopsy.
A new study demonstrates what the world would look like for mammals if the most destructive super predator of them all had never been around.
The never-before seen, and now extinct, species confirms that the creatures once lived in the Caribbean, where they are not found today.
Discovery of the world's oldest known snake reveals that it lived among dinosaurs, evolved from lizards, and had four tiny feet.
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