How Do Glass Frogs Make Their Blood Invisible?

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Glass frogs are active during the night when there isn't a particular risk from predators. They take almost 90% of their pigmented red blood cells and hide them in their liver. This means that it's really hard to work out the outline of the frog anymore. Scientists honestly don't have a clue how they're managing to do it. It takes only a couple of seconds for the blood to reprophuse around the body when they wake up and walk around.

In this episode of the Nature Podcast, we catch up on some science stories from the holiday period by diving into the Nature Briefing.

We’ll hear: how Brazil’s President Lula has started to make good on his pro-environment promises; a new theory for why giant ichthyosaurs congregated in one place; how glass frogs hide their blood; about a new statue honouring Henrietta Lacks; and why T. rex might have cooed like a dove.

Nature News: Will Brazil’s President Lula keep his climate promises?

Science News: Mysterious ichthyosaur graveyard may have been a breeding ground

The Atlantic: How Glass Frogs Weave the World’s Best Invisibility Cloak

BBC News: Statue of Henrietta Lacks will replace Robert E Lee

Books & Arts: The woman behind HeLa

Editorial: Henrietta Lacks: science must right a historical wrong

News: Wealthy funder pays reparations for use of HeLa cells

BBC Futures: What did dinosaurs sound like?

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