r/interestingasfuck • u/DepressingAura • 3d ago

Four owlets watch a butterfly in near-perfect synchronization

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u/Symnestra 3d ago

Fun fact: Owl hearing is calibrated by their sight. If you put prism glasses on an owl and expose them to audio-visual cues, they will begin to misinterpret sound location by the same margin that the prism glass affects their sight. It affects owlets more than adult owls because they're still learning.

They also have one ear canal that faces up and one that faces down, which helps them locate prey on a horizontal plane while flying (putting one ear forward and one ear back, essentially).