- Mercury is the only metal that is liquid at room temperature.
- Texas is the only state that permits residents to cast absentee ballots from space.
- A group of kangaroos is called a mob.
- Your blood is 6 times thicker than water.
- Cows can walk up stairs but not down them.
- Acrophobia is the fear of heights.
- The 'black box' that houses an airplanes voice recorder is actually orange so it can be more easily detected amid the debris of a plane crash.
- The Bee Hummingbird weighs less than a penny.
- A honeybee's top speed is 24kph (15mph).
- A group of frogs is called an army.
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