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
There is a “Fruit Salad Tree” which can grow up to 6 different types of fruit.
16
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9