Dozens of fossilized whales, seals and other marine animals have been discovered piled up in an ancient tidal flat in northern Chile.
The species actually survived the mass extinction event of 250 million years ago and lived another 120 million years.
Ten million years after the largest mass extinction, a lineage of animals thought to have led to dinosaurs took hold in Tanzania and Zambia.
The "prizzly" bear and other animal hybrids could lead to extinctions.
The world's biodiversity is declining at an unprecedented rate. As a result, more extinctions than usual are predicted for the coming year.
Did "fright" really mysteriously kill thousands of blackbirds?
Remains of the two huge beasts were found in the same coal mine.
The finding adds new evidence to the debate of whether they were cold or warm-blooded.
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