Genus Erinaceus, commonly known as hedgehogs, is a group of small nocturnal mammals that belong to the family Erinaceidae. There are several synonyms that refer to these spiny creatures, including Erinaceomorpha, Erinaceida, and Insectivora. Hedgehogs are found in various parts of the world, including Europe, Africa, and Asia. They are known for their distinctive quills that protect them from predators. Hedgehogs are omnivorous and feed on a variety of insects, invertebrates, small animals and plant matter. They are also popular exotic pets and are known for their docile nature and adorable appearance. The name "hedgehog" refers to their habit of foraging in hedgerows.