Wolves have two layers of fur, an undercoat and a top coat, which allow them to survive in temperatures as low at minus 40 degrees Celsius! In warmer weather they flatten their fur to keep cool.

It only takes a male horse 14 seconds to copulate.

The postage rate for a letter in 1693 was determined through how much light could pass through the letter. The postage rate would be more expensive if less light went through, and this process was called candling.

AMAZING FACTS