- Red blood cells are produced in bone marrow.
- The oldest cockroach fossils are over 280 million years old.
- Everyone has a unique tongue print.
- Polar bears are strictly carnivores.
- A garfish has green bones.
- March 14 is 'save a spider day'.
- 44% of people have broken a bone.
- Avocados have the most calories of any other fruit.
- An elephant's trunk can hold over 5 litres of water.
- A dolphins top speed is 60kmh (37mph).
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