Listening for the amphibian apocalypse
Updated 2:10 PM ET, Mon January 9, 2017
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John D. Sutter is a columnist for CNN Opinion who focuses on climate change and social justice. Follow him on Snapchat, Facebook and email. This story is part CNN's "Vanishing" series. Learn more about the sixth extinction and get involved.
La Selva Biological Station, Costa Rica (CNN)The "blue jeans" frog is practically screaming to be noticed. Its head is blood red, and its legs are denim blue. It looks like it's wearing jeggings. But this little critter, also known as the strawberry poison dart frog, is only about the size of a fingernail. It spends most of its time either high up in the trees in this Central American rainforest or rooting around in the gooey "leaf litter" of the forest floor.