Deinotherium ("terrible beast"), also called the Hoe tusker, was a gigantic prehistoric relative of modern-day elephants that appeared in the Middle Miocene and continued until the Early Pleistocene. During that time it changed very little. In life it probably resembled modern elephants, except that its trunk was shorter, and it had downward curving tusks attached to the lower jaw. Deinotherium is the third largest land mammal known to have existed; only Paraceratherium and Mammuthus sungari we… (More on Deinotherium)