Junjie Yao via SWNS Because they have transparent skin and other tissues, it’s the blood circulating through their bodies that would otherwise give them away. The frogs also shrink and pack ...

Since their red blood cells are transporting very little oxygen, Delia says the frogs likely have "some alternative process that allows them to keep their cells alive during transparency." ...

Red blood cells in the circulatory system make it difficult for most animals to become transparent. These cells are good at absorbing green light, which is the colour of light normally reflected ...

A frog that turns itself mostly transparent while sleeping may hold clues for understanding blood clotting in humans. Scientists have long known about the glass frog but did not understand how it ...

"If you really want to be transparent, you need to hide your red blood cells," study co-author Sönke Johnsen, a professor of biology at Duke University in North Carolina, told Live Science.

Why isn't your body transparent? Some animals such as jellyfish ... When we added it to the mouse's scalp, we could see the ...