- Australia has the largest sheep population.
- Thin skinned lemons are the juiciest.
- In 1900 the average life span in the US was 47.
- Giraffes can't cough.
- Swiss mathematician Leonhard Euler was probably the most influential mathematician of the 18th century, making discoveries in graph theory and introducing many modern mathematical words and notations among other things.
- You can't trademark surnames.
- Polar bears are strictly carnivores.
- Cats can hear ultrasound.
- 10% of with world's food supply is consumed by insects.
- 1 billion snails are served in restaurants each year.
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