However, it's hard to tell what the now-extinct creatures actually looked like just from their bones. A new discovery has helped provide a clearer picture of their appearance and may even reveal ...

There are "huge numbers of rare species", said Horton, adding that much of the diversity was among the creatures living in the mud. The nodules are also a unique habitat, like coral gardens in ...

Carbon-dating teeth suggests two large mammal species roamed northeastern Brazil 3,500 years ago Geologist Fábio Faria and colleagues carbon-dated eight fragments of megafauna teeth of different ...