A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously ...

Four adorable western Santa Cruz Galápagos tortoise babies are now on display at Philadelphia Zoo after their 100-year-old 'Mommy' reproduced for the first time.

Researchers may have discovered Mississippi's largest ever mosasaur after pulling a Cretaceous-aged fossil out of a riverbed ...

Dire wolves — or really, wolves with traits like the extinct species — are back. But New York has plenty of its own ...

Scientists made the discovery at an outback research site in Central Queensland’s Mt Etna Caves region. For thousands of ...

A new peer-reviewed study has found that, unlike modern kangaroos, the extinct marsupial megafauna Protemnodon were less ...

Australia’s giant Protemnodon kangaroos didn’t die out everywhere at the same time. Instead, extinction proceeded one habitat ...

Giant kangaroos stuck close to home and went extinct when climate change caused that home to disappear, according to a study ...

Unlike massive mammals, mega marsupials 300,000 years ago limited their dining options by keeping close to home.

Scientists used fossil data to predict the home range of the prehistoric Protemnodon and its implications for the species’ ...

It’s wonderful to imagine kangaroos almost four times the size of big reds hopping around ancient Australia, but this lot ...