Stunning whale graveyard explained
Scientists think they can now explain the astonishing discovery of a graveyard of fossil whales in Chile that accumulated more than five million years ago.
Scientists count whales from space
High-resolution satellite imagery is used to automatically count southern right whales swimming off Argentina's coast – a development that could greatly assist the animals’ conservation.
New river dolphin species found
The Araguaian Boto is the first new river dolphin discovered since the end of World War One and only the fifth known species.