Pookie's Cool Facts archive.

Filter  Item Title Herbivores eat for much of the time. Dolphins take care of each other. Stingrays get their name from ther whip-like tail with its poisonous barbs. Your body has a variety of barriers, toxic chemicals, and booby traps to stop germs from entering it Urine is most water, but there are substances dissolved in it. The kidneys are a pair of bean-shaped organs inside the small of the back. Enzymes are essential for the digestion, including lipase, protease, amylase, and the peptidases. On average in Europe, men can expect to live about 75 years and women about 80. Your genes are a mixture, half come from your mother and half from your father. Your brain seems to have two ways of remembering things for the long term. During an average lifetime, the heart pumps 53 million gl (200 million lt) of blood. The heart is a powerful pump made almost entirely of muscle. Unlike arteries, most veins carry "used" blood back to the heart. Fleas and lice are small wingless insects that live on birds and mammals, including humans. Termite nests are built like cities with many chambers, including a garden used for growing fungus. Free nerveendings are sort of like the bare end of a wire. Part of the brain that deals with smell is linked to the parts that deals with memories and emotions To stay upright, your body mst send a continual stream of data about its position to your brain. The black of the eye is lined with millions of light-sensitive cells. To reach water, giraffes havo to spread their front legs wide apart. All lemurs live on the island af Madagascar, were they evolve in isolation. Rats constantly investigate their environment. Island fruit bats are vulnerable to tropical storms that can blow them far out to sea. Asian elephants are the world's longest lived mammals after humans. Saturn is one of the fastest spinning of all the planets. The Galilean moons are the four biggest of Jupiter's moons. Black smokers are natural chimneys on the seabed. Fresh snow can contain up to 90 percent air. People in Japan have a long life expentancy. The bones of a baby's skeleton are fairly soft, to allow for growth. By the age of 20, you will have lost 20 percent of your sense of smell. Each of your two eyes gives you a slightly different view of the world. The iris is the colored, muscular ring around the pupil. Termite colonies are even more complex than ant ones. There are 22,000 species of bee. Some like leaf-cutter bees, live alone. Many butterflies are brightly colored and fly by day. Worms are long, wriggling, tubelike animals. A zebra's stripes are as individuals as human fingerprints. Aggressive hippos warn off other hippos by opening their jaws to display their tusks. Australia's ghost bat is the continent's only meat-eating bat. Isaac Newton discovered that sunlight is made of all colors mixed together. Most plastics are polymers. Vitamins D and K are the only ones made in the body. Fats called triglycerids are stored around the body as adipose tissue (body fat). Glucose is a kind of sugar made by plants as they take energy form sunlight. There are 20 different amino acids - your body can make 11 of them. Scientists call breathing "respiration". Milk contains a mineral called calcium, wich is essential for building strong bones. The immune system is the body's defense against germs. Most turtles and tortoises eat plants and tiny animals.   << Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >> Results 1 - 50 of 772

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