![]() They conducted additional imaging tests on the animals, proving via optical models that the animals were able to achieve transparency because they were pushing red blood cells out of their vessels. Working with Jesse Delia, who traveled around the world collecting different glassfrogs for the study, they observed that red blood cells seemed to be disappearing from the circulating blood whenever the frogs became transparent. Taboada first began studying glass frogs as a post-doctoral fellow in the lab of Sönke Johnsen, a professor of biology at Duke who specializes in studying transparency. Glassfrogs are some of the only land-based vertebrates that can achieve transparency, which has made them a target for study. In return, these oxygen-rich cells reflect red light, making blood –– and by extension the circulatory system –– highly visible, especially against a bright green leaf. Red blood cells are adept at absorbing green light, which is the color of light usually reflected by plants and other vegetation. One reason transparency is so difficult to achieve is because of red blood cells in the circulatory system. Many animals in the sea can change the color of their skin or become completely transparent, but it’s a far less common skillset on land. “These frogs sleep on the bottoms of large leaves, and when they’re transparent, they can perfectly match the colors of the vegetation.” “When glassfrogs are resting, their muscles and skin become transparent, and their bones, eyes and internal organs are all that’s visible,” said Carlos Taboada, a post-doctoral fellow at Duke and a co-first author of the paper. The northern glassfrog, Hyalinobatrachium fleischmanni,measures no more than a few centimeters, and they are most active at night, when their green skin helps them blend in with the surrounding leaves and foliage.īut these amphibians become true masters of camouflage during the day when they’re asleep. It’s easy to miss a glassfrog in its natural environment. A multi-university team of biologists and biomedical engineers has shown how these frogs make themselves see-through in research that appears December 23 in the journal Science. Glassfrogs make themselves transparent while they rest by taking red blood cells from circulation and concealing them in their livers. PhD Plus Professional Development Program.Mechanical Engineering & Materials Science.Diversity, Equity, Inclusion & Community.STAT.Duke Pratt School of Engineering Apply Menu “Poll: Americans Support Gene-Editing Embryos To Prevent Diseases – STAT”.“Bank Crime Statistics 2018 | Federal Bureau Of Investigation”. ![]() “‘See-through’ bodies technique developed”.“What Is Human Gene Editing? | Center For Genetics And Society”.Brad Plumer, Eliza Barclay, Julia Belluz, and Umair Irfan 2018. ![]()
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