Science Newly discovered frog is smallest known vertebrate

The tropical forest of Papua New Guinea is home to the smallest animal with a backbone, a frog dubbed Paedophryne amanuensis.

Christopher Austin, LSU

The tropical forest in Papua New Guinea is a noisy place at night, filled with the calls from all sorts of living things: frogs, birds and insects, including especially loud cicadas. One particular call — a high-pitched, cricketlike "tink-tink-tink" — caught the attention of herpetologist Christopher Austin and his graduate student Eric Rittmeyer.