This photo provided by the Smithsonian's National Zoo, taken Thursday, Nov. 29, 2007, shows four baby Solomon Island leaf frogs. born Nov. 20 at the zoo in Washington. They skipped the tadpole phase emerging from their eggs as fully-formed frogs known as “froglets.” The Solomon Island leaf frog is one of the few species in the world to do this. In the wild, this species is found in the moist lowland forests of Papua New Guinea and, as its name implies, the Solomon Islands. Although not yet endangered, these frogs face many of the same environmental challenges, such as pollution and loss of habitat, that have put many amphibian species in jeopardy. (AP Photo/Jessie Cohen, Smithsonian's National Zoo)
A girl fails to maintain a crouching posture as students go through etiquette training at a vocational school in Beijing October 25, 2007. Around 1,400 aviation service students, mostly between the ages of 16 and 17, are currently going through physical conditioning as well as professional training for dressing and etiquette in order to serve as stewards during the 2008 Beijing Olympics, according to the school announcement. REUTERS
This photo provided by the Primate Research Institute in Kyoto, Japan, show a chimpanzee named Ayumu as he performs the second stage of a memory test in which he must recall the location on a touch sensitive monitor of numerals that have changed to squares, Dec. 13, 2006, at the Institute in Kyoto. (AP Photo/Primate Research Institute, Kyoto/Tetsuro Matsuzawa)
A boy rolls down a hill in the deep snow while playing near the course for the men's World Cup giant slalom in Beaver Creek, Colorado December 2, 2007. Beaver Creek has received over 15 inches of new snow in the last 24 hours. REUTERS/Mark Leffingwell (UNITED STATES)
Children play with a male goose during a beauty contest for fowl in Poroszlo, eastern Hungary June 23, 2007. (Karoly Arvai/Reuters)
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., laughs at the painted head of supporter Daniel Nagy of Barrington, N.H. as she campaigns at a union hall in Brentwood, N.H. Monday, Nov. 26, 2007. (AP Photo/Elise Amendola)
Iraqi soldiers guard a blindfolded Al-Qaeda suspect outside a military detention center in Baquba. US military prisons in Iraq hold around 2,000 Al-Qaeda militants, who were detained in security operations across the country.(AFP/File)