A vulture's stomach is so acidic that it can dissolve a nail after just a couple of hours.
For each human being on earth, there are more than half a million insects.
One single tree can be home to 20 million lice.
Sperm are created in the male testicles. The testicles are constructed so they build pipe-formed structures. In every testicle these pipes are more than 400 yards long.
A single thread in a spider's web is as strong as a steel cable of the same size.
The division of blood groups varies between different people in different countries. The only group of people who have the same blood group are american natives - 0.
In india, where hinduism is the major religion, they worship over 300 million gods. Almost every little village has its own local god.
Every single second, your marrow produces about 3 million red blood corpuscles. During that time, the same amount die. The daily production is more than 200 billion corpsucles.
On average, there are 94 girls born for every 100 boys, but among quadruplets, 156 girls are born for every 100 boys.
It has been proven that taller people score better on intelligence tests.
About 1,000 down feathers can be pressed into a thimble. Once removed, they will soon regain their original volume.
The first nose transplants were performed in india as early as 750 b.c. the noses were taken from unfaithful wives.
The acidity in the human stomach is so strong that it has to be diluted about 400 times to reach the same grade of sourness as coca-cola.
Radium-224 is the most poisonous element in the world. This naturally occurring isotope is 17,000 times more poisonous than plutonium-239.
When ian fleming wrote his first book casino royale, he got the name james bond from a writer of a book about caribbean birds.
Mel blanc, the man who gave voice to bugs bunny, was allergic to carrots.
Bulletproof vests, fire ladders, windshield wipers and laser printers were all invented by women.
The three wise men were named caspar, melchior and balthazar.
Thieves often listen at doors and in some cases this has gotten them convicted. The police are not only interested in fingerprints but ear prints as well, which are unique for every human being.
In india, more than 140 main languages are spoken with 845 accents.
New species can be found in the strangest places. A new ant specie was found in a flower pot on the sixteenth floor of a german office building.
51,000 people can fit onto a football field if they stand really close together.
If you are afraid of animals in general, you suffer from zoophobia.
The cape of good hope is not the most southern part of africa. It is cap agulha, which is located about 90 miles south-east of the cape of good hope.
On average every year, you will consume 12 pubic hairs while eating in restaurants.
The national anthem of the european union (eu) is an der freude from the ninth symphony by ludvig von beethoven.
John wilkes booth, the man who shot abraham lincoln, the 16th president of the usa, was an actor.
One of the elements in dynamite is peanuts.
The five different colored rings, on the olympic flag, symbolize the union of the five continents and that the olymic games shall be a meeting place for athletes from around the world. At least one color of each ring can be found on every world flag.
Sean connery, the first james bond, won the mr. Universe contest before he became an actor.
A cat has thirty-two muscles in each ear.
Did you think that the monkeys in the zoo were picking fleas off each other? Wrong; they are in fact grooming for salty skin dander.
When you're using the computer keyboard, your left hand does 56% of the typing.
The actual meaning of the word turkey is "cock from calicut".
The zipper would not have become the success it did if it hadn't been for world war one. Originally, it wasn't used on clothing but on money belts that the amercian solders brought to europe.
Many hamsters blink only one eye at a time.
The pacemaker was invented in the 1950's by sweden's rune elmqvist at the pacesetter company.
The chance of surviving a plane crash is better in seats found in the back of a plane where you have the best protection during take offs and landings. This is when the risk of an accident is at its greatest.
If barbie had been a real human being, her measurements would have been 97-58-97.
It's often warmer in cities than in the countryside. The reason being asphalt absorbs more energy from the sun than grass, trees and plants do.
The longest border between two states in europe is the border between sweden and norway. It's 1,000 miles long.
John rhys-davies, who played gimli the dwarf in the three lord of the rings movies had a tough time during filming. His armament weighed 66 pounds and he was also allergic to the prosthetic glue.
At first, cinderella's shoes were made of leather but when the folktale was written down in the 16th century, the french words "vair" and "verre" were mixed up. The first means skin and the latter means glass.
On average, a hurricane produces more energy than all of the world's power plants put together.
In 1899, the eiffel tower was built by gustave eiffel for the paris exhibition and was suppose to be demolished afterwards.
One day - the time it takes our planet to rotate around its axis - would take only 9 hours and 55 minutes on the planet jupiter.
The african ostrich is not only the largest bird in the worldit also lays the largest eggs. On average, one egg weighs 2 to 4 pounds. That's equivalent to the weight of 45 normal-sized eggs.
If you never cut your hair and lived to be 77-years old, your hair could grow 690 miles long.
A newborn kangaroo weighs approximately one gram (0.035 ounces).
Hurricanes are always given names in order to make them easier to track. Their names always start with an "a" at the beginning of each year. In 1979, the women's movement pressured meteorologists to use both male and female names instead of just female names. Today, boy names are used on even numbered years and girl names on uneven ones.
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Dean Karnazes Super endurance
Most athletes and runners have to stop when they reach their lactate threshold, but Dean Karnazes s muscles never tire and because of this rare ability he can run for days and nights without sleeping or stopping. His extraordinary feats include running on a treadmill for eighty hours nonstop (350 miles) and running fifty marathons in fifty states in fifty consecutive days.