It’s tough being a frog. You have to account for opposing lanes of traffic across a busy highway and, if you get through that, you have to hop across logs and the backs of turtles, avoiding alligators ...
Glass frogs evolved one of the strangest camouflage systems ever discovered, becoming nearly invisible by hiding most of their red blood cells inside a reflective crystal-covered liver. Resting ...
Top View of the Glass Frog (Centrolenidae). The species is native to the Central American Rainforest. © Lauren Suryanata/Shutterstock.com Glassfrogs are tree ...
As tiny glass frogs fall asleep for the day, they take almost 90 percent of their red blood cells out of circulation. The colorful cells cram into hideaway pockets inside the frog liver, which ...
What if you had the power of invisibility, but it only works when you’re asleep? That might be useful for a surreptitious nap in public, but it still probably wouldn’t suit you as well as it does the ...
Glass frog photographed during sleep and while active, showing the differences in red blood cells within the circulatory system. Jesse Delia via AMNH When a tiny glass frog dozes off to sleep, its ...
When you're a superstar Muppet, apparently you have to hide out in the jungles of Costa Rica to avoid the paparazzi. Freelancer Michael Franco writes about the serious and silly sides of science and ...
Glass frogs often start life with some tender care from a source scientists didn’t expect: frog moms. Maternal care wouldn’t be news among mammals or birds, but amphibian parenting intrigues ...
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