Anacondas have long dominated the South American waterways, with modern researchers recognising around five distinct species within the genus Eunectes (literally “good swimmer”). The green anacondas , ...

An ancient Egyptian letter, written roughly 3,300 years ago, has suddenly become the latest flashpoint in a very old argument about whether the Bible’s giant humans were rooted in real encounters. The ...

Ancient anaconda fossils show that the snakes became giants soon after emerging in Miocene South America. Their size has stayed stable for over 12 million years, even though other huge reptiles went ...

An ancient giant kangaroo that lived in Australia 50,000 years ago likely hopped after all, refuting past research on the species, according to a new study. Scientists previously believed that ...

Add Yahoo as a preferred source to see more of our stories on Google. Prehistoric Earth was home to giant animals like huge dinosaurs, marine reptiles, and flying pterosaurs. Many grew large due to ...

Giant ancestors of modern-day kangaroos — which previous research has estimated could weigh up to 250 kilograms — may have been able to hop in short bursts, according to research published in ...

Lightning-sparked wildfires killed thousands of giant sequoias this year, leading to a staggering two-year death toll that accounts for up to nearly a fifth of Earth's largest trees, officials said ...

Ancient inhabitants of the Arabian desert created monumental works of rock art on cliff faces, including life-sized images of camels, perhaps as a way to mark sources of water. Michael Petraglia, at ...

An artist’s reconstruction of a finned octopus of the species Nanaimoteuthis haggarti that reached a length estimated at up to 18.6 meters (61.02 feet) and lived about 86 to 72 million years ago ...

At the time of the dinosaurs, the oceans were teeming with life. Below the waves, giant marine reptiles, such as the fearsome 4m (13ft) long mosasaurs, were the undisputed apex predators. In artistic ...