Add Yahoo as a preferred source to see more of our stories on Google. A rare fossil of Joaquinraptor casali from Patagonia reveals a powerful predator that may have dined on crocodiles. (CREDIT: The ...

Add Yahoo as a preferred source to see more of our stories on Google. Pumas are now preying on Patagonia’s coastal penguin colonies at high rates, raising new conservation concerns. Rising puma ...

A new “apex predator” dinosaur species has been discovered based on its fossil, unearthed in Argentina with a crocodile bone stuck in its jaws. The species has been named Joaquinraptor casali, and was ...

A massive, bus-sized “terror croc” that once preyed on dinosaurs has been brought back to life in stunning detail with the ...

An apex predator was spotted hunting a sea lion off the coast of California, boaters said. Getty Images/iStockphoto A 10-foot apex predator was spotted circling its prey off the coast of California, a ...

Along South America’s windswept southern coast, Magellanic penguins have spent decades nesting in relative safety. For much of the twentieth century, sheep ranching dominated the region, and pumas ...

A fossil from the blustery plains of Patagonia is revising your book on one of the most elusive bands of hunting dinosaurs. The newly discovered dinosaur, Joaquinraptor casali, preyed on the soggy ...