- A crocodile can't stick out its tongue.
- Most snakes have 1 lung.
- 12 + 3 - 4 + 5 + 67 + 8 + 9 = 100.
- There are 2,598,960 possible hands in a 5 card poker game.
- Cats can hear ultrasound.
- Spiders have transparent blood.
- A shrimp's heart is in its head.
- The equals sign (=) was invented in 1557 by a Welsh mathematician named Robert Recorde.
- Acrophobia is the fear of heights.
- Venetian blinds were invented in Japan.
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