Fun Fact Friday (#22)

Fun Fact Friday is a meme hosted by Lettora at I’m Booked! If you’d like to join and do your own Fun Fact Friday, just ask! At I’m Booked! Every week we’ll give you five new, fun facts.

This week’s five facts:

1.  Rats and horses can't vomit.

  

2. A shrimp's heart is in their head.

 

3. Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.

 

4. A dragonfly has a lifespan of 24 hours. 

 

5. Camels have three eyelids to protect themselves from blowing sand.