Two new species of frogs have been found in Papua New Guinea. The Paedophryne dekot, where dekot means “very small” in the local Daga language, is 8.5 to 9 millimeters long. 

The P. verrucosa, which means “full of warts” in Latin, is bumpy skinned and 8.8 to 9.3 millimeters long. They are the smallest known frogs in the world and are also the smallest tetrapods, or vertebrates with four legs. 

The tiniest known vertebrate is a fish found in Southeast Asia known as the Paedocypris progenetica with the mature females measuring 7.9 millimeters. The newly found frogs are very hard to catch and were discovered on an expedition to an isolated mountain in Southeastern Papua New Guinea. 

The little frogs live on leaves and mites. They were found by scientists listening to their call and zeroing in on the source. They were able to catch the frogs with their bare hands, which showed to be no easy task. They are much like crickets in that they spring up and land very far from where you were originally trying to catch them.

(Source)