Wild Insides
#Animals
The Songbird That Skewers Its Prey On Thorns
The shrike looks like a harmless little grey songbird, but its feet are too weak to hold prey.
Short. Strange. True.The real science
glass frog · transparent frog · animal facts · frog camouflage · invisible animal · blood clotting
The real science
Glass frogs have see-through skin, but red blood should give them away. While they sleep, they pack nearly ninety percent of their red blood cells into their liver and become two to three times more transparent. Somehow the blood never clots, and scientists want to know how. Based on research published in Science in 2022.
Don’t try anything shown in this video.
Follow the facts
- Science: Glassfrogs conceal blood in their liver to maintain transparency
- Science News: Glass frogs become see-through by hiding their blood
Ask about this science
Curious about something in “This Frog Hides Almost All Its Blood To Turn Invisible”? Our AI-powered helper answers using only this page’s write-up and sources.
AI answers can be wrong; check the sources. Not medical advice.
Our illustrations simplify anatomy and scale. Educational content only; not medical advice.
Still curious?
#
#Animals
The Parasite That Replaces A Fish's Tongue
The tongue-eating louse is a tiny ocean parasite that slips into a fish through its gills and clamps onto the tongue.
Short. Strange. True.The real science
#45Animals
Why Your Cat Ignores Your Cake
Cats can't taste sweetness.
Short. Strange. True.The real science