Dolphins have bigger brains than the brains of humans See more

The typical laboratory mouse runs 2.5 miles per night on its treadmill. See more

It is estimated that millions of trees in the world are accidentally planted by squirrels who bury nuts and then forget where they hid them! See more

It takes a plastic container 50,000 years to start decomposing. See more

If you are locked in a completely sealed room, you will die of carbon dioxide poisoning before you will die of oxygen deprivation. See more

The animal that lived longest of all was a turtle. It lived to become the respectable age of 188 years. See more

The major air-polluting industries are iron, steel and cement. See more

Over 10,000 birds a year die from smashing into windows. See more

If you leave a goldfish in a dark room for years, it will turn white. See more