Microhyla nepenthicola frogs may be small, but they have a loud mating call. That's how scientists on Borneo discovered them:
Adult males of the new micro-species range in size from 10.6 and 12.8 millimetres and the pea-sized amphibian has been named Microhyla nepenthicola after the plant on Borneo on which it lives, according to taxonomy magazine Zootaxa.[...]
The scientists said they tracked the frogs by their call, a series of "harsh rasping notes" that started at sundown.
They then made the frogs jump onto a piece of white cloth to study them.
Link via io9 | Photo: Indraneil Das