One pair of rats has the potential for 15,000 descendants in a year. See more

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

You can be imprisoned for not voting in Fiji, Chile and Egypt - at least in theory. See more

Pearls melt in vinegar. See more

Fish that live more than 800 meters below the ocean surface don't have eyes. See more

The female pigeon cannot lay eggs if she is alone. In order for her ovaries to function, she must be able to see another pigeon. See more

Acorns were used as a coffee substitute during the American Civil War. See more

Every single possible 3-character .com domain (over 50,000) has long since been registered! See more

Toxic house plants poison more children than household chemicals. See more