Foot bones more than 40 million years old, from Antarctica, reveal a creature standing more than 6 and a half feet tall.
Dinosaurs would still be around today, and humans never would have emerged, if an asteroid hadn't struck Earth right when it did 66 million years ago.
Some 322 birds, mammals and reptiles all went extinct in just the past 500 years due to people, research shows.
If you hope to avoid extinction, it pays not to be a finicky eater. Continue reading →
Genetic evidence suggests giant, flightless birds, the moas, thrived until Polynesians colonized New Zealand in the 13th century, when the birds quickly went extinct. Continue reading →
Without dramatic conservation efforts, three of the four West African lion populations could become extinct in the next five years.
Scientists have revived the genome of an extinct Australian frog that gave birth through its mouth. ->