White-backed vultures?once plentiful in India and Pakistan?have become critically endangered. Now environmentalists are urging a ban on a common veterinary drug that may be poisoning the birds.
The skull of the dino suggests it was a muscular vegetarian, with hundreds of teeth for chomping woody plants, a new study says.
Satellite pictures also show that the vast berg?aided by record low Arctic sea ice levels?charted a surprising course into warmer southern waters.
