South America was a realm of giants back then ... making them some of the largest dinosaur species themselves by body size. Rounding out the local bestiary were other animals like crocodylians ...

Our dinosaur expert Professor Paul Barrett says, 'Although the blue whale is famous for being the biggest animal that has ever ... Paul explains, 'It's not impossible that any land animal around today ...

Scientists put their “stamp” on prehistory after discovering a massive dinosaur footprint in Mongolia said to have belonged to one of the largest two-legged animals ever to roam the Earth.

Dinosaurs are one of the biggest land-dwelling animals to ever exist on Earth ... stems, and twigs a day. But they couldn’t waste energy hunting around to find those veggies.

“Don’t feed the animals” takes on a completely different tone when the animals are dinosaurs. The Philadelphia Zoo has brought back giant ... side with some of the biggest and smallest ...

"You can step back in time and get an ... "The whole animal would have been 6-9m in length. They were the largest predatory dinosaurs that we know of in the Jurassic period in Britain." ...