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Smaller than a pea, flea toads are so teensy they approach the limits of how small a backboned animal can be.in Brazil's Serra Bonita mountain range led to them being referred to as toads. And curiously tiny ones at that.
"Our data show that the flea toad… can be crowned as the tiniest frog and vertebrate species in the world," State University of Santa Cruz herpetologist Wendy Bolaños and teampreviously held this 'smallest' record, but at 7.7 millimeters , the males are over half a millimeter larger than the Brazilian frog, Bolaños and colleagues confirm.
They found the adult male flea toads averaged around 7.1 millimeters. Females of all the tiny frog species tend to be slightly larger to find, it comes with a price too.speculated that physical limitations for animals with internal skeletons hit at around 6 millimeters. Beneath this threshold it becomes challenging to fit enough cell types to create all vital organs, including a large vertebrate brain, or produce enough eggs for a sustainable population.
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