Fun Fact Friday (#29)

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.  Camels have three eyelids to protect themselves from blowing sand

2.  Owls are one of the only birds who can see the colour blue

3.  Only one person in two billion will live to be 116 or older

4.  The average lifespan of an eyelash is five months

5.  A spider has transparent blood