Pygmy hippopotamus occur. The common hippopotamus gives birth and mates only in the water, but pygmy hippos mate and give birth on both land and water. Young pygmy hippos can swim almost immediately. At birth, pygmy hippos weigh 4.5–6.2 kg (9.9–13.7 lb) with males weighing about 0.25 kg (0.55 lb) more than females. Pygmy hippos are fully weaned between six and eight months of age; before weaning they do not accompany their mother when she leaves the water to forage, but instead hide in the water by themselves. The mother returns to the hiding spot about three times a day and calls
Pygmy owl deposits in Poland (Mlíkovský 2002). Pygmy owl Pygmy owls are members of the genus Glaucidium. They belong to the typical owl family, Strigidae. The genus consists of about 26 to 35 species distributed worldwide. The exact number of species is somewhat disputed. These are mostly small owls, and some of the species are called "owlets". Most pygmy owl species are nocturnal and hunt mainly large insects and other small prey. "Glaucidium" forms a paraphyletic group with "Surnia". The supposed prehistoric species ""Glaucidium" dickinsoni" is now recognized as a burrowing owl, probably a paleosubspecies "providentiae". Bones of an indeterminate "Glaucidium" have