Ethicists and conservationists appear to be divided over what the purpose of bringing back extinct species should be – and whether it matters.

If there’s one drawback to the popularity of the Jurassic Park movies, it’s that they’ve cornered the market on dinosaur features. Nobody else in Hollywood wants to make big-budget dinosaur movies out ...

Small fossils show mammals moved to the ground before the dinosaurs vanished. New plants changed habitats, giving better food ...