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Today I learned that ...

The Kakapo is the only flightless, nocturnal parrot alive.
Besides looking up, down, left and right you can also rotate your eyes. This is called cyclorotation. Your eyes do this to maintain a steady depth perception. And you can learn to do this actively.
If you use your body to block someone from entering your home its a form of Phragmosis.
Portia is a genus of intelligent spider-eating spiders that probably are capable of learning and problem solving.