Venezuela's first-known dinosaur provides some of the earliest evidence that at least some dinosaurs lived in herds.
Its name might be a tongue-twister, but Leikupal Laticauda has vaulted into the upper reaches of dinosaur stardom. Why? Because it lived after almost nothing else did.
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?
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