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In a study published in this month’s Pediatrics, researchers at Ohio State University reviewed U.S. gymnastics injuries in girls between 1990 and 2001 and found that it carries one of the highest injury rates of all girls’ sports.

There are more opportunities to find work in the city than in the countryside. This attracts poor people who want to improve their lives, and create a better future for their children.

lack of housing

newcomers often set up temporary shelters on the outskirts of cities. It is in these temporary shelters that the problems of urbanization arise.

Working dogs, handlers share special bond

A military working dog team here is waiting to find out whether a canine warrior will be awarded the Combat Action Badge.

Besides training, the handlers also care for the dogs.

Most important: Avoid nasty bites.

McNeil Island.

Harbor seals are reclusive. Their favorite South Sound hangout is a sandy, protected spit on Gertrude

Ader kept working to perfect his airplane, and finally, with the financial backing of the French Army, he built Avion III, a flying machine similar in design to the Eole but with a longer wingspan and two four-blade propellers. On Oct. 14, 1897, Ader tested his Avion at Satory with a military observer team present. Ader claimed that that day he had again flown, but three witnesses disagreed with each other about whether Ader actually took off and flew the Avion before it crashed.

SAMUEL PIERPONT LANGLEY

Langley was soon experimenting with models, the first of which were powered by rubber bands

Dogs As Companion Animals

For decades dogs (Canis familiaris) have been used to aid humans in tasks such as hunting, herding and guarding. Dogs have also been used to enhance the quality of life of individuals with disabilities. This includes guiding and alerting people with impaired vision or hearing, and retrieving dropped items for the physically challenged. More recently, the concept of dog-assisted therapy has evolved into tremendously successful programs in the areas of physical rehabilitation and psychological recovery. However, as society has moved from small rural communities to increasingly large urban and suburban centers, the role of dogs as mere companions has increased. More than 30 million Americans live with one or more dogs, the majority of whom are kept as social companions.

argest member of the Kingfisher family.

in captivity: Up to 20 years

eucalyptus forests of eastern Australia

Global warming is the long-term, cumulative effect that greenhouse gases, primarily carbon dioxide and methane, have on Earth's temperature when they build up in the atmosphere and trap the sun's heat. It's also a hotly debated topic. Some wonder if it's really happening and, if it's real, is it the fault of human actions, natural causes or both?

1. Polar ice caps meltingThe ice caps melting is a four-pronged danger.First, it will raise sea levels. There is 5,773,000 cubic miles of water in ice caps, glaciers, and permanent snow. According to the National Snow and Ice Data Center, if all glaciers melted today the seas would rise about 230 feet. Luckily, that’s not going to happen. But sea levels will rise.Second, melting ice caps will screw up the global ecosystem. The ice caps are fresh water, and when they melt into the ocean, they make it less salty, or desalinize the ocean. The desalinization of the gulf current will screw up, to put it simply, the current. It will cool the area around north-east America and Western Europe. Luckily, that will slow some of the other effects of global warming in that area. But with the stream shutdown, the whole Atlantic ecosystem could be warped.Third, all the animals in the Arctic will be in danger because of a changing habitat.Fourth, global warming will accelerate with the ice caps gone. Ice caps are white, and reflect sunlight. Some of that sunlight is reflected back into space, further cooling Earth. If the ice caps are melted, only the dark-colored ocean will be there. Darker colors absorb sunlight, further warming the Earth.