1

"The muscle that causes a rattlesnake to rattle fires 50 times a second for up to 3 hours or 520,000 rattles without stopping."

2

"In 2015, police in Belfast, Northern Ireland used music from ice cream van to calm angry teen rioters."

3

"Due to the high fat content and a scarcity of available wood, penguins were often used by whalers in the 19th century to fuel the fire needed to melt the whale blubber. "

4

"There is a disease nicknamed Stone man syndrome that converts damaged tissue to bones. Over the course of many years, this leads to the victim becoming more and more like a statue."

5

"A poll conducted in 1997 revealed that Americans thought NASA’s funding accounted for 20% of the federal budget. In fact, NASA has received one cent or less per every tax dollar since 1975. At present, they receive $.005 cents per dollar."

6

"Killer whales know that great white sharks need to move to breathe, and will hold them upside down in order to kill them. "

7

"Hugh Trenchard, a British soldier in the Boer War, was shot in the chest and spine, becoming partially paralyzed. He took up bobsledding as a hobby, and after a major accident regained use of his legs."

8

"As an April Fools Day joke, Gamestation added a clause stating that users who placed an order on April 1, 2010, agreed to irrevocably give their soul to the company. 7,500 users agreed"

9

"There is an exposed bedrock near Hudson Bay, Canada that is 4.3 billion years old. It is the oldest known rock and was around when the earth was only 200 million years old with no atmosphere or oceans."

10

"You cannot be tickled by a robot that you are controlling, but you can be if you are not controlling it."

11

"Alcatraz was the only federal prison at the time to offer hot-water showers for its inmates. The prison staff reasoned that prisoners acclimated to hot water would not be able to withstand the freezing waters of the San Francisco bay during an escape attempt. "

12

"Hippopotamuses cannot swim. Their bodies are far too dense to float. Instead, they push off the bottom of the river or run along the riverbed."

13

"After he was accused of witchcraft during the Salem witch trial, Giles Corey was subjected to “pressing.” He was stripped naked and weight was added to a heavy plank on his chest to force him to plead innocent or guilty. Each time he was asked to make his plea, he said “more weight” and was eventually crushed to death. "

14

"During the outbreak of World War II, London Zoo killed all their venomous animals in case the zoo was bombed and the animals escaped. "

15

"Lego minifigures have a hole on top of the head in case any kids get one of the heads stuck down their throat. That way they would be able to keep breathing."