Everyone loves a random fact, but the best from this list, may very well be right at the end of it. The one about Justin Bieber that is. Check out the entire list anyway. It's really entertaining. From brains, to King Leonidas, to men in Japan giving their wives all their money, there's more:

1. Humans' and dogs' brains have evolved to understand each others' vocalizations to some degree.


2. A Scottish man was walked in on having sex with his bike in a private hostel room. He was forced to register as a sex offender for three years.


3. Deuterium, is one of the ingredients of nuclear fusion, and is found in seawater. A gallon of seawater could produce as much energy as 300 gallons of gasoline.


4. King Leonidas was 60 years old at the Battle of Thermopylae.


5. Marlon Wayans was originally cast as Robin in Batman Returns & Batman Forever and even paid for the role but never appearing in the films.


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8. 3 Quarters of men in Japan give all their money to their wives and receive an allowance.

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13. In 2001, glow sticks was almost banned from parties from the label "drug paraphernalia."


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15. Axl Rose has a greater vocal range than Mariah Carey and sang lower notes than Barry White.


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17. After defeating the Persians, Alexander the Great started dressing like them and took two Persian wives.


18. A guy named Justin Bieber, in his 30s, was banned from Facebook for sharing the same name with the celebrity.