The leg bones of a bat are so thin that no bat can walk.
A living tree never stops growing.
The wristwatch was invented in 1904 by Louis Cartier.
The pressure at the centre of the Earth is 27,000 tons per square inch.
Fish are the only vertebrates that outnumber birds.
Your blood vessels, if laid end to end, would encircle the globe twice over.
Bulls are colorblind, therefore will usually charge at a matadors waving cape no matter what color it is be it red or neon yellow!
There are 60,000 miles (97,000 km) in blood vessels in every human.
Spains biggest source of income is tourism.
A rubber tire is actually one single giant molecule.