1. More than 40,000 parasites and 250 types of bacteria can be exchanged in one kiss.
2. If the lion take another pack of lions, kill all newborn lion cub.
3. Ice-making machines in restaurants are not really cleaned.
4. The oldest condoms date back to 1640 and were found in Dudley Castle in England. They were made of intestines of fish and other animals.
5. Statue of Liberty initially destined for Egypt.
6. Before erasers were invented, people used pieces of bread to erase the traces of pencil.
7. The Romans used powered mouse brains as toothpaste.
8. Butterflies sometimes drink blood.
9. Koalas eat the faeces of their mothers.
10. The average person consumes about 500 grams of insects a year, mostly through food.