The endangered North American whooping crane has a remarkable story. Starting in 2001 (using a method pioneered by Bill Lishman and Joe Duff with Canada Geese) a flock of baby whoopers raised in captivity in Wisconsin was trained to follow …[Continue]
Uranus
Uranus is the seventh planet from the Sun, the third-largest planet in the Solar System, and has twenty-seven known moons. Though visible to the naked eye, it was dismissed as a star until March 13, 1781 when Sir William Herschel, …[Continue]
Snow
Today’s collection of snow sites include both a scientific and artistic exploration of the subject. For example, if you’ve ever wondered how to preserve snowflakes on microscope slides, or how to make sparkle snow paint, you’ll find your answers (and …[Continue]
Louis Pasteur
Louis Pasteur (1822-1895) was one of the greatest biologists of the nineteenth century. He is credited with the discovery of the germ theory, using heat to kill germs in food products (a process now called pasteurization ), debunking the long …[Continue]
Lightning
Although it has been studied since the eighteenth century, the mystery of what causes lightning has not been completely unlocked. Beautiful to behold, but occasionally deadly, lightning is a force of nature that must always be taken seriously. Learn more …[Continue]
Constellations
A group of stars that forms a picture is commonly called a constellation. Astronomers, however, call these star pictures asterisms, and have a slightly different definition of a constellation. Scientists divide the sky into eighty-eight official constellations, so that every …[Continue]
Alternative Fuels
As gas prices soar, consumers become more interested alternative fuel cars. Lower costs, however, are not the only benefits to alternative fuels. They also produce fewer emissions (better for the environment) and can usually be produced in the United States …[Continue]
Honey Bees
Honey bees are hardworking, useful insects that pollinate nearly one-third of all the food we eat, and make our life sweeter with the honey they produce. In a single day, a single hive can pollinate four million flowers, and make …[Continue]
Dog Breeds
Whether you are trying to find the right dog breed for your family, or just want to learn more about dogs, you’ll surely find these sites both educational and entertaining….[Continue]
Digestive System
The digestive system is a group of organs (from the mouth to the rectum) that processes food so the body can use it. The following sites explain the process with illustrations and animations for all age groups….[Continue]
