The South American degu, a small rodent, uses urine to mark its passageways. Its urine reflects ultraviolet light, which the degu can see.

It took approximately 2.5 million blocks to build the Pyramid of Giza, which is one of the Great Pyramids.

The YKK on the zipper of your Levis stands for Yoshida Kogyo Kabushibibaisha, the worlds largest zipper manufacturer.

AMAZING FACTS