Our top 100 facts, in order from best to worst.
In ancient times doctors used spiderwebs to make bandages for their patients.
About 98% of the thoughts you have each day are the same thoughts you had the previous day.
The microwave was invented by accident in 1945, when an engineer working close to high powered radars noticed the candy bar in his pocket had melted.
Hummingbirds do everything fast. In just one minute they can flap their wings 50 times, have their heart beat 1200 times, and take 250 breaths of air.
Bees must collect nectar from 2 million flowers to produce one pound of honey.
Adult camels can drink 30 gallons (113 liters) of water in just 13 minutes.
In Laguna, Brazil, dolphins help fishermen to catch fish. The dolphins round up the fish and signal the fishermen to cast their nets. More than 200 families rely on the daily catch.
Tigers and house cats have 95.6% similar DNA.
Astronomers think Neptune may have oceans that are made up of liquid diamonds.
It takes 8 minutes and 20 seconds for sunlight to reach the Earth.
Scientific studies suggest that eating a handful of pistachio nuts per day helps reduce cholesterol and maintain a healthy heart.
The Banana tree is not really a tree, it is actually a giant herb plant. It can grow up to 25 feet tall, making it the largest herb in the world.
Hyenas have exceptional strength. Their heart is twice the size of a lion's heart.
China has the most donkeys in the world, about 11 million.
There is always an even number of rows on a corn cob.
A bullet shot out of a rifle can exit the barrel at speeds up to about 2796 miles/h (4500 km/h). That's more than three times the speed of sound.
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