Hippos are among the three largest land mammals, smaller only than the rhinoceros and the elephant. Thanks to their vast size ...

If a hippo and a rhino were to engage in a serious fight, both would end up with major injuries. This is likely why the smaller hippo in the video knows to run away from the rhino, and why the ...

Among the large mammals that roamed prehistoric North America was a type of rhinoceros that seems to have lived in the water, much like a modern hippopotamus. The extinct rhinoceros, known as ...

Among land mammals, the common hippo ranks in size just behind the two African elephant species and the white rhinoceros. A large male can weigh roughly 4,500 pounds. Hippo jaws can open to almost ...