In prehistoric North America, the short-faced bear (Arctodus simus) ruled the land. It was one of the biggest and most powerful predators the world has seen, weighing an immense 900 kilograms and ...
Towering 13 feet tall and weighing a hefty 7 tons, the African elephant is the biggest land mammal on Earth. But that wasn't always the case. Tens of millions of years ago, shortly after the ...
From the large selection of avian and megafauna, we settled on: the Arctodus simus (North American Short Faced Bear), the Megalonyx jeffersonii (North American Jefferson Ground Sloth), the ...