Brachycephalus leopardus is a species of frog in the family Brachycephalidae. It is very tiny and was one of seven new species described by Luiz F. Ribeiro and a team of scientists from the Mater Natura — Instituto de Estudos Ambientais in Brazil. Like all species in its genus, it is found in a very small strip of Atlantic Forest in the southeastern coast of the country, and has a vibrant colour pattern. The speciation seen in this genus is thought to be a byproduct of the rift between the valley versus mountain terrain and its particular microclimates, to which they are adapted. It might be in population decline due to habitat loss. Its name derived from the Latin leopardus, referring to the frog's spotted pattern evocative of the felid genus Leopardus.

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