In the grand tapestry of Earth’s history, there once roamed colossal creatures that towered over the landscapes. These magnificent animals, now lost to time, were the giants of the land. From ...

A first-of-its-kind aerial survey of wildlife in South Sudan has helped confirm the world’s largest land mammal migration, and now we’ve even recorded evidence of it. The survey focused on the ...

The world’s oldest mammal has been identified using fossil dental records ... A shrew-like creature that lived 225 million years ago is the oldest mammal ever identified ...

In this corner, weighing up to 190 metric tons, is the blue whale. This behemoth still swimming in Earth’s oceans is the current titleholder for the heaviest animal to ever exist — living or ...

All three species lived roughly 34 to 27 million years ago. The tallest, K. waewaeroa, stood at a height of around 1.4 metres and weighed around 80 kilograms. “They were graceful penguins, with ...

The most massive animal to have ever lived is still swimming around today. The blue whale, Balaenoptera musculus , regularly tips the scales at over 100 tonnes. Some estimates have pegged ...

A version of this article appears in print on , Section D, Page 2 of the New York edition with the headline: The Largest Ape Ever, but Not Too Big to Fail. Order Reprints | Today’s Paper | Subscribe ...