Did you know? Wtf facts

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1- Research shows that cheerful students think they're doing well but have lower GPA's- a negative attitude increases motivation to learn.

2- Until the 1960's, the only reliable pregnancy test was to inject a woman's urine into a female African clawed frog. If the woman was pregnant, the frog would ovulate wishing 12 hours.

3- It only takes six minutes for brain cells to react to alcohol.

4- Secretly thinking you're better than everyone else is good for your mental health.

5- Denmark has more pigs than people.

6- Cats can remember love and kindness shown to them, and return it in the future.

7- Crows recognise individual human faces and hold grudges.

8- A 2012 study revealed that women are better drivers than men.

9- Abraham Lincoln kept his important documents inside his hats.

10- The first computer bug was caused by an actual bug being inside a computer.