› added 7 years ago

94

TIL most birds can’t move their eyes, which are not spherical like in mammals. They are also tetrachomatic, meaning they have 4 retinal cones (primary colors) versus 3 in humans, allowing most birds to see the UV spectrum and distinguish between colors that appear identical to humans.

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dK1d TIL - The Chinese government has a nationwide surveillance system that they ACTUALLY NAMED Skynet
k6yg TIL that the word ‘Bookkeeper’, and its variations, is the only unhyphenated word to contain 3 consecutive double letters
gMZ07 TIL over half of all the world's cobalt comes from the Congo, much of it mined by children and slaves, and is a crucial ingredient in all lithium-ion batteries, especially electric car batteries and clean energy storage, and is often classified as a conflict mineral.
GAYAE TIL - Bananas are curved because they are negatively geotropic; they curve upwards to break through the banana leaf canopy to reach sunlight!
9wxVQ TiL the only living survivors of the sinking of the Tirpitz are trees - and they'll happily tell you what they saw.