Yellow-bellied Toad (Bombina variegata scabra), family Bombinatoridae, Thrace, Greece
This frog is engaged in an “unkenreflex”, in which it shows off its brightly colored underside, as a warning to predators that it is toxic. Many toxic frogs and salamanders, with bright warning colors on the belly, but cryptic coloration on the back, use the unkenreflex, when pertubed.
photographs by Michael Wirth














