The first American woman to go to medical school was admitted as a joke. Geneva Medical School thought it was joke when Elizabeth Blackwell applied to attend 1847. She graduated in 1849, started her own practice, and opened an infirmary for the poor.
Before mating, the female giraffe will first urinate in the male's mouth.
Over 80 million bacteria can be exchanged in one kiss.
Water makes different pouring sounds depending on its temperature.