- The diameter of Jupiter is 152,800km (88 700 miles).
- Armadillos have 4 babies at a time and are all the same sex.
- Cows can walk up stairs but not down them.
- A human being could swim through the blood vessels of a blue whale.
- Mosquitoes prefer children to adults and blondes to brunettes.
- Kangaroos can not walk backwards.
- Wooly mammoths grew as tall as 14 feet, weighing 10 tons. Mammoths used tusks for protection and to attract mates.
- Finland has the largest number of islands in the world (over 179,550).
- Reindeer hair is hollow inside like a tube.
- In 2015, the Oxford word of the year was the tears of joy emoji.
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