Bumblebee toads, also known as Melanophryniscus stelzneri, are small, vividly coloured amphibians native to South America, particularly Argentina. Their striking black and yellow patterns resemble those of a bumblebee, serving as a warning to potential predators that they may be toxic—a form of aposematic colouration. These toads are relatively small, typically growing to just over an inch in length. They thrive in moist environments and are most active during the rainy season, when they breed in temporary pools. In captivity, they are popular among amphibian enthusiasts due to their bold appearance and manageable care requirements, though their care still demands attention to humidity and diet.