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Glass frogs divert blood during sleep to become transparent, study finds

Glass frogs divert blood during sleep to become transparent, study finds
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United statesCarlos taboadaNelly cruzRichard whiteDuke universityMemorial sloan kettering cancer centerCentral americaSouth america

Scientists reveal secrets of frog transparency

WASHINGTON — Now you see them, now you don’t. Some frogs found in South and Central America have the rare ability to turn on and off their nearly transparent appearance, researchers report Thursday in the journal Science. During the day, these nocturnal frogs sleep by hanging underneath tree leaves. Their

United statesSan franciscoCarlos taboadaJuan manuel guayasaminJunjie yaoRichard whiteUniversity san franciscoOxford universityDuke universityCentral america

Glass act: Scientists reveal secrets of frog transparency

A species of glass frogs found in South and Central America has the rare ability to turn on and off its transparent appearance. Researchers report Thursday in the journal Science that some sleeping glass frogs concentrate, or “hide,” nearly 90% of their red blood cells in their liver. Because they have transparent skin and other tissues, it’s the blood circulating through their bodies that would otherwise give them away. When the frogs are awake and active, they become opaque. Only a few animals are naturally transparent, mostly ocean dwellers. The trick of turning on transparency while sleeping and vulnerable to predators appears to be unique to the frogs.

United statesSan franciscoCarlos taboadaJuan manuel guayasaminJunjie yaoRichard whiteEducational media groupScience departmentHoward hughes medical institute scienceUniversity san franciscoAssociated pressOxford universityDuke universityCentral americaAssociated press healthHoward hughes medical institute

How Glass Frogs Weave the World s Best Invisibility Cloak

How Glass Frogs Weave the World s Best Invisibility Cloak
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Sleeping glass frogs hide by storing most of their blood in their liver

Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver until the tiny animals wake up.

New yorkUnited statesAmerican museum of natural historyCarlos taboadaSarah friedmanJesse deliaJunjie yaoAtmospheric administration alaska fisheries science centerNational oceanicDuke universityAmerican museumNatural historyScience newsAtmospheric administrationAlaska fisheries science center