From river giants to land-dwelling beasts, these are the biggest creatures walking, swimming and flying across our planet ...

From prowling tigers and roaming elephants to muscular crocodiles and massive blue whales – these images capture the beauty ...

A newly described sauropod dinosaur from Thailand stretched an estimated 27 meters long and carried a body mass of roughly 27 tonnes, the equivalent of about five adult African elephants. Named ...

Modern elephants, rhinos, and giraffes are impressive, but they pale in comparison to some of the colossal creatures that ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. When we think about the scope of our world’s diversity, ...

Due to its vast size — stretching from Canada and Greenland in the north, to Mexico in the south — North America contains a vast range of habitats. From land to sea, there are forests, mountains, ...

Even today's giants — towering giraffes and massive elephants — are tiny compared to the prehistoric titans that once dominated the planet. Long before humans showed up, Earth was home to creatures so ...

Once, a python named Medusa held the trophy of the largest captive snake alive, being 25 ft 2 in long. But only last year, an even bigger specimen was found. The snake was 26.2 ft long, and it was ...

When most people think of enormous animals, their mind probably jumps to giraffes or a grizzly bear. But the largest animals on Earth span a wide range of categories. Mammals comprise over 6,000 ...

Animals with larger brains produce fewer, larger offspring, explaining why birds evolved bigger eggs than the largest dinosaurs.