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 salamander in light of the species having a wide distribution, a large population, and being unlikely to decline fast enough to be placed in a more threaten category. Threats to the pygmy salamander include deforestation of spruce-fir forest. Acid rain is also a threat at the high elevation that can destroy the spruce-fir trees in the pygmy salamander’s natural habitat. Pygmy salamander The pygmy salamander (or pigmy salamander, "Desmognathus wrighti") is a species of salamander in the family Plethodontidae. It is endemic to the United States in the southern Appalachians in North Carolina and Tennessee. "Desmognathus wrighti" is a member of