Is animals having mole like human?

A mole is nothing but, melanin pigments deposited on the inner layer of skin (dermis), also called as nevus. It is congenital. Sometimes hairs grown on them. The mole may appear suddenly or existing one change it's color and size. These changes may be an indication of cancer. Melanin pigments are found in all animals, especially in mammals. Because of hairs, moles are not seen distinctly.