The Brazilian flea toad may be the world’s smallest vertebrate
Males measure about seven millimeters long on average
![A tiny brown frog sits just off center on a Brazilian real coin.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2024/02/022624_eg_smallest-vertebrate_feat.jpeg?fit=1030%2C580&ssl=1)
The Brazilian flea toad has nabbed the title of world’s smallest known amphibian and smallest known vertebrate. At just 7 millimeters long on average, the frogs are a fraction the size of a 27-millimeter-wide $1 Brazilian real coin.
W.H. Bolaños, I.R. Dias and M. Solé/Zoologica Scripta 2024