Male dogs lift their legs when they are urinating for a reason. They are trying to leave their mark higher so that it gives off the message that they are tall and intimidating.

Cockroaches can make group decisions. When 50 cockroaches are presented with 3 shelters that can only house 40, they’ll split evenly into two groups and leave one shelter empty.

Albert Einstein cheated on his wife, belittled her scientific achievements, and refused to help out around the house and made her sign a contract in which she would agree to leave the room or stop talking if he told her to.

In 2007, a man named Jeremy Harper counted to one million. He did not leave his apartment or shave until he finished, and it was all broadcast live on a webcam. It took him 3 months.