Don’t think of all Mesozoic mammals as meek and tiny—alongside the terrible lizards, some were giants in their own right ...

In this episode, we rank the largest land mammals to have ever existed using estimated maximum weights, comparing each giant to modern animals to keep the scale clear. We travel from Australia’s ...

A study published in Science of large cetaceans has unveiled remarkable findings about their potential for extreme longevity and the significant implications this has for their conservation. North ...

For decades, an extinct group of rhinos have been universally recognized as the biggest land mammals of all time. Some 34 million to 23 million years ago, the hornless Paraceratherium genus dwelled in ...

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 ...

Between 50,000 and 10,000 years ago, many of the world's largest mammals disappeared. Picture creatures like saber-toothed cats with 7-inch fangs and elephant-sized sloths. Woolly mammoths whose ...

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, ...

Fossil bite marks reveal that giant crocodylians were likely the leading predators of huge mammals about 12 million years ago ...