The European Fire-bellied Toad (Bombina bombina) is a fire-bellied toad native to mainland Europe. Its name derives from the brightly coloured red- or yellow-and-black patterns on its ventral region, which act as aposematic coloration, a warning to predators of the toads' reputedly foul taste. The other parts of the toads' skins have more neutral colours such as green or dark brown.