Roosters can't crow if they can't fully extend their necks
The cheetah is the only cat that can't retract it's claws
Armadillos can walk underwater
Kiwi birds are blind
A group of whales is called a pod
Most birds eat twice their body weight each day
Giraffes have no vocal cords
According to the old English time system a moment is 1 and a half minutes
Paper money was first used in China
The drinking straw was invented in 1886
The lie detector was invented in 1921
There is enough petrol in a full tank of a Jumbo Jet to drive the average car 4 times around the world
Cars were first started with ignition keys in 1949
The revolving door was invented in 1888
The Chinese used fingerprints as a method of identification as far back as AD 700
The first metered taxi was introduced in 1907
You shed a complete layer of skin every 4 weeks
Red blood cells are produced in bone marrow
Your normal body temperature is 37'C (99'F)
1 square inch of human skin contains 625 sweat glands
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