One out of 20 people have an extra rib!
1.A cockroach can live several weeks with its head cut off - it dies from starvation!
2.A dragonfly has a lifespan of 24 hours.
3.One out of 20 people have an extra rib.
4.Crocodiles do not have sweat glands, so they release heat through their mouths.
5.Under extreme stress, some octopuses will eat their own arms.
6.The creator of the NIKE Swoosh symbol was paid only $35 for the design.
7.Brain size is not always a sign of intelligence, but big-brained Troodon was probably one of the smartest dinosaurs.
8.A chicken will lay bigger and stronger eggs if you change the lighting in such a way as to make them think a day is 28 hours long!
9.Lions usually live in groups, known as 'Prides'.
10.Giraffes have the highest blood pressure of any land mammal. They need a very big heart to pump the blood all the way up to their head.