Fire-Bellied Toad (genus Bombina)

AmphibianFrogEurasia

Overview

Fire-bellied toads (genus Bombina) are small, semi-aquatic frogs of Europe and Asia, drab and warty above — usually green or brown — but hiding a spectacular secret underneath: a vivid red, orange, or yellow belly boldly mottled with black. The oriental fire-bellied toad (Bombina orientalis), shown here, is the best-known species and a popular display animal.

That bright belly is a warning. When threatened, a fire-bellied toad performs a distinctive arching display — bending its back, raising its limbs, and even flipping to flash the warning colours — signalling that its skin carries irritating, toxic secretions and is best left alone.

Note: “fire-bellied toad” covers several Bombina species; details here use the oriental fire-bellied toad as a reference. Treat general statements as approximate and verify against authoritative sources.

Habitat & Range

Fire-bellied toads live in and around still and slow fresh water across Eurasia — ponds, ditches, marshes, flooded meadows, slow streams, and pools — spending much of their time floating at the surface or sitting at the water's edge. The oriental fire-bellied toad ranges across parts of northeastern Asia, while other species live in Europe; all favour shallow, vegetated water.

Diet

Fire-bellied toads are carnivores, eating insects, worms, snails, and other small invertebrates both in the water and on land. They are sit-and-wait feeders that snap up small prey passing nearby, and their varied diet of wetland invertebrates suits their shallow-water lifestyle.

Behavior

The hallmark of these frogs is the “Unkenreflex” — a defensive arching display in which a startled toad bows its back, lifts and twists its limbs, and may flip partly over to reveal the bright belly, advertising the toxins in its skin. Those secretions can irritate the eyes and mouth of a predator (and a handler), reinforcing the warning. Fire-bellied toads are largely day-active and highly aquatic, floating with limbs splayed, and males give a soft, repeated barking or chiming call during the breeding season. They hibernate over winter on land or in mud.

Human Interaction & Conservation

Fire-bellied toads are commonly kept in the amphibian hobby, prized for their colours and hardy, active nature. Because their skin produces irritating toxins, they should be handled as little as possible and with clean, wet hands, and hands should be washed afterwards — never touch your eyes or mouth after handling one. In the wild, like other amphibians, they are affected by wetland loss, pollution, and disease; many remain fairly widespread while some populations decline. Consult AmphibiaWeb and the IUCN Red List for status.

More photos of the fire-bellied toad