Hedgehogs are small, spiny mammals found in Europe, Asia, and Africa. Hedgehogs typically have brown or black fur, and a white belly. They are nocturnal animals, and use their sharp spines to defend themselves from predators. Hedgehogs are known for their ability to roll into a tight ball when threatened.
Hedgehogs have been around for over 15 million years and are thought to have evolved from a common ancestor with shrews. Hedgehogs are nocturnal animals and spend most of their time sleeping in dens during the day. At night, they forage for food, which consists mainly of insects, snails, and other small invertebrates.
Hedgehogs are solitary animals, but they will sometimes share their dens with other hedgehogs. Females will usually have a litter of two to six babies, which are born blind and without spines. The spines will begin to grow in after about three weeks. Hedgehogs reach sexual maturity at about one year of age.
In the wild, hedgehogs typically live for two to three years, but they can live up to ten years in captivity. Hedgehogs are not considered to be endangered, but their populations are declining in some areas due to habitat loss and fragmentation.