Hedgehogs are small, spiny mammals that are native to Europe, Asia, and Africa. They belong to the Erinaceidae family and are known for their distinct spiny coat and nocturnal habits.In Europe, hedgehogs are found throughout the continent, from the United Kingdom and Ireland in the west, to Russia and Greece in the east. They are also found in many Mediterranean islands such as Sicily and Malta. The European hedgehog, also known as the West European hedgehog, is the most common species found in Europe and is known for its reddish-brown color and small size.In Asia, hedgehogs are found in a wide range of habitats, from deserts to forests. They are found in countries such as India, Pakistan, and China, as well as in the Himalayas and the Russian Far East. The most common species of hedgehog found in Asia is the long-eared hedgehog, which is known for its large ears and long spines.In Africa, hedgehogs are found in a wide range of habitats, from deserts to forests. They are found in countries such as Egypt, Ethiopia, and South Africa. The most common species of hedgehog found in Africa is the North African hedgehog, which is known for its long spines and dark brown color.Hedgehogs are also known to be introduced to some regions, such as New Zealand, where they were brought by European settlers in the 19th century. They are considered as an invasive species and have been causing damage to the native ecosystem and the wildlife.In conclusion, hedgehogs are small, spiny mammals that are native to Europe, Asia, and Africa. In Europe, hedgehogs are found throughout the continent, from the United Kingdom and Ireland in the west, to Russia and Greece in the east. In Asia, hedgehogs are found in a wide range of habitats, from deserts to forests, in countries such as India, Pakistan, and China. In Africa, hedgehogs are found in a wide range of habitats, from deserts to forests, in countries such as Egypt, Ethiopia, and South Africa. Hedgehogs are also known to be introduced to some regions such as New Zealand, where they are considered as an invasive species.