The tongue is the only muscle in the body attached from one end.
In 1567, the man said to have the longest beard in the world died after he tripped over his beard running away from a fire.
The wolf's jaw can exert 1500 pounds of pressure per square inch, twice the jaw pressure of a German Shepherd. Wolves can crush large bones in just a few bites.
In 1966 and 1967, soldiers testing Agent Orange in Canada were told the chemical was completely safe and sprayed it on each other to cool off.