Mother Nature doesn't always play by the rules... Sometimes she flips the script, hits Caps Lock and produces something so unusually large that it looks like it could be cast in a sci-fi movie. We're ...

Some see squirrels as adorable, bushy-tailed creatures that run in circles around tree trunks before they finally race up ...

In the Mesozoic Era, dinosaurs were the undisputed rulers of the land. The Argentinosaurus, possibly the largest dinosaur ever, stretched up to 100 feet long and weighed around 100 tons. These ...

The largest sloth of all time was the size of an elephant. Known to paleontologists as Eremotherium, the shaggy giant shuffled across the woodlands of the ancient Americas between 60,000 and five ...

From an evolutionary perspective, is bigger always better? The journey the thunder beasts took to reach such mega proportions from such humble beginnings forces us to ask an important question, one ...

When scientists finally measured the most powerful bite ever recorded, the winner wasn’t T. rex. It was something far older, ...

Colossal Biosciences has announced a partnership to resurrect giant flightless birds called moa. But the company's recent dire wolf project was controversial, and moa are an even more ambitious target ...

Nature packs surprises in every corner, be it in the form of fierce predators or gentle creatures that share our world without a snap. Among these creatures, there are some that earn trust and ...

The Ice Age was a world locked in endless winter, where massive glaciers crept across continents and woolly mammoths roamed icy tundras. It was not just a single event, but a series of cold snaps ...

Ancient sloths lived in trees, on mountains, in deserts, in boreal forests and on open savannas. Some grew as large as elephants. Illustration by Diego Barletta The largest sloth of all time was the ...