Questions for ‘This frog is the world’s smallest known vertebrate’
![A tiny brown frog sits just off center on a Brazilian real coin.](https://www.snexplores.org/wp-content/uploads/2024/02/022624_eg_smallest-vertebrate_feat-1030x580.jpeg)
Can you spot the Brazilian flea toad? At just 7 millimeters long on average, this frog has been named the world’s smallest known amphibian and smallest known vertebrate. Here, one is dwarfed by a 27-millimeter (1-inch) wide $1 Brazilian real coin.
W.H. Bolaños, I.R. Dias and M. Solé/Zoologica Scripta 2024