Pigs may not fly, but hippopotamuses do — at least momentarily. When hippos get moving, all four feet leave the ground for about 15% of their stride cycles, researchers at Britain's Royal ...

Hippos aren't just lazy river-dwellers lounging around all day; they play a crucial role in their ecosystems. You'll find them spending much of their time submerged in rivers and lakes ...

When you think of animals that become airborne, hippos wouldn't exactly be the first species that comes to mind... After all, these mammals can weigh up to 1,500 kg for males and 1,300 kg for females.