When the Moon is directly above you, your weigh slightly less than usual.
Expansion of a crocodile jaw causes secretion of the lacrimal (tear) gland, and that is how the belief was created that the crocodile was mourning his victim.
0.85 liters of blood passes through the human brain every minute.
A duck’s heart beats twice as slower when it dives.
Cows sleep almost as long as humans.
Cleopatra's Needle, which is now located at Central Park in New York was once part of a sundial.