All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
In Japan, watermelons are grown into the shape of a square so they are easier to stack and transport.
108
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7