Aug. 25, 2010 - Researchers have discovered a new species of frog in Borneo which only grows to the size of a pea.

Finding the mini frogs, named Microhyla nepenthicola, proved to be a challenge due to their size. Adult males range in length from 10.6 to 12.8 millimeters.

Drs. Indraneil Das and Alexander Haas of the Institute of Biodiversity and Environmental Conservation at the Universiti Malaysia Sarawak, and Biozentrum Grindel und Zoologisches Museum of Hamburg, respectively, tracked the amphibians by their call.

The frogs normally start singing around dusk, making a series of harsh rasping notes that last for a few minutes, followed by brief intervals of silence. This "amphibian symphony" goes on from sundown until peaking in early evening.