New Species of See-Through Frog Found, Looks Like Kermit

New Species of See-Through Frog Found, Looks Like Kermit



Calling all Muppets fans: A new species of see-through glass frog found in Costa Rica looks just like Kermit.

The lime-green amphibian, which took the Internet by storm this week, has bulging white eyes with perfect black pupils, much like Jim Henson’s musical puppet.

But this frog can’t carry a tune. In fact, it has a long whistle like that of an insect, which, according to a new study, may be why scientists didn’t notice it for so long – Costa Rica’s last glass frog discovery occurred in 1973.

Dubbed Diane’s Bare-hearted glass frog (Hyalinobatrachium dianae), the inch-long (2.5 centimeter) amphibian is described February 19 in the journal Zootaxa.

Glass frogs, found in Central and South America rain forests, live high in tree canopies near streams and creeks, descending when it’s time to breed.

The glass frog’s name originates from its translucent, organ-revealing bellies—though the lack of pigmentation is still a mystery to scientists.

Their green coloration, on the other hand, helps the nocturnal frogs stay camouflaged on the undersides of leaves during the day.

The new frog may look like Kermit, but it’s not quite as cuddly: Male glass frogs are very territorial, and will grapple fiercely with other males who trespass on their territory, says Andrew Crawford, a batrachologist at the University of Los Andes in Colombia who wasn’t involved in the new research.

The purpose of the newfound frog's translucent underside is a mystery. PHOTOGRAPH BY BRIAN KUBICKI, COSTA RICAN AMPHIBIAN RESEARCH CENTER
The purpose of the newfound frog’s translucent underside is a mystery. PHOTOGRAPH BY BRIAN KUBICKI, COSTA RICAN AMPHIBIAN RESEARCH CENTER

Tough Time for Frogs

The newfound species inhabits eastern Costa Rica’s mountainous forests, which range between 1,300 and 2,500 feet (400 to 800 meters)—prime territory for amphibians, according to biologist Steven Whitfield, who studies frogs in Costa Rica.

It’s also the altitude at which the deadly chytrid fungus is most widespread. The fungus, which attacks amphibian skin, has resulted in several frog species disappearing from Costa Rica and worldwide since the 1980s, says Whitfield, a National Geographic grantee who was also not part of the new study.

Frogs are also threatened by habitat loss due to deforestation, adds Crawford.

Considering these threats, finding a real-life Kermit is even more special.

Says Whitfield: “It’s pretty cool to see that they’ve found a new species, when there are so many that may have been lost.”

This article was first published by National Geographic on 21 Apr 2015. Lead Image: Diane’s Bare-hearted glass frog was named after Janet Diane Kubicki, the mother of Brian Kubicki, the study’s senior author. PHOTOGRAPH BY BRIAN KUBICKI, COSTA RICAN AMPHIBIAN RESEARCH CENTER.


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