Length: 38mm

Weight: 6.5g

Reproduction method: Unknown

Home: Found on the bed of cold, clean rivers

Body temperature: 14 to 17 deg C

Respiration: To stay safely on the river bed, away from swirling currents, it has done away with air-filled lungs which would increase its buoyancy. Oxygen passes into its bloodstream through the skin.

Vision: Forward-facing eyes make the frog more streamlined and help it pinpoint prey.

Food: Scientists believe it is a fierce predator feeding on beetle larvae three times its length.