To find out if a watermelon is ripe, knock it, and if it sounds hollow then it is ripe.
84
The giant squid has the largest eyes in the world.
62
Goldfish remember better in cold water than warm water.
29
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A completely blind chameleon will still take on the colors of its environment.
43
