Wild & Weird: The 'Scrotum Frogs' of Titicaca
Lake Titicaca water frogs live in the eponymous lake in the Andes Mountains. The lofty elevation there, above 12,500 feet, can give people altitude sickness. But these high-living frogs have evolved baggy, wrinkly skins to help them cope, a feature that gives them a bit of a testicular look — and the moniker "scrotum frogs."
The extra surface area of these frogs lets them absorb more oxygen in their cold-water homes. We think they're cute as heck, but they did win fourth place in the British Science Association's "ugliest animal" contest in 2013.
These unique critters are in trouble, though: They suffered a mass die-off in 2016, and it's estimated their numbers fell by 80 percent from 1990 to 2004 from human predation and water pollution.
Check out our new video of these ugly-adorable frogs on Facebook and YouTube.