Bombina bombina

The Fire-bellied Toads is a group comprising eight species of small toads (typically 4-7cm in length) belonging to the genus Bombina. Common variants on the name 'Fire-bellied toad' include 'firebelly toad' and 'firebellied toad'. Their name derives from the brightly coloured red- or yellow-and-black patterns on their 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. When confronted with a possible predator, it is not uncommon for these toads to engage in an Unkenreflex, "Unken" being the plural form of the German term "Unke" for firebellied toad, wherein the toad arches its back, raising its front and back legs to display the bold warning coloration of its underside. However, in captivity, being raised in captivity for so long has resulted in toads that usually don't use the reflex anymore because they have been raised in areas without predators