- Laughing lowers levels of stress and strengthens your immune system.
- Bottle nosed whales can dive to a depth of 915 metres (3,000feet) in 2 minutes.
- The only continent without reptiles or snakes is Antarctica.
- The most common time for a wake up call is 7am.
- A whip makes a cracking sound because its tip moves faster than the speed of sound.
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