The new Argentine dino might give us clues to what the world was like before the asteroid wiped out their kind.

This Earth Day, embark on an unforgettable adventure with Emmy® and BAFTA Award-winning Nat Geo Explorer Bertie Gregory ...

LOS ANGELES -- In celebration of Earth Month in April, National Geographic is giving viewers an extraordinary ... of South Georgia Island to the tropical Galapagos and Namibia's desert caves," ...