A blue whale's tongue weighs as much as an elephant.
In 1945, Dwight D. Eisenhower predicted that people would try to dispel the holocaust as a falsehood, and ordered all possible photographs taken of the Nazi crimes to hinder any such attempts.
Bloodhounds are great marathoners.
The toilet is statistically the cleanest place in your home. Your desk, kitchen sink, and cellphone all have more bacteria.