Gulls feasting on whales in Argentine waters

It's a weird, lopsided fight if ever there was one: seagulls divebombing to attack and feed on the fat of 50-ton whales and their babies. And the birds are winning.

Rare dolphin species threatened by big fishnets

The long-beaked La Plata River dolphin, a small species living in in South America's Atlantic coastal waters, is increasingly threatened with extinction from big-net fishing, Brazilian researchers warn.

What is killing Argentina's right whales?

Fatal strandings of southern right whales around Argentina's Valdes Peninsula have soared in recent years, and worried scientists are not sure why, the International Whaling Commission heard Friday.