Local officials burn chicken coops in anticipation of a resurgence in bird flu in Jakarta, Indonesia, in January. Concerns about potential misuse of research into genes that control the contagiousness of flu have stymied publication. Tatan Syuflana/AP hide caption

itoggle caption Tatan Syuflana/AP

Chickens were killed in Hong Kong last December in an effort to halt the spread of the deadly H5N1 strain of bird flu. Aaron Tam/AFP/Getty Images hide caption

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The space shuttle Discovery is loaded onto the back of a modified 747 at Kennedy Space Center on April 15. The plane will ferry the shuttle to Washington, D.C., on April 17, where it will be permanently installed at the Smithsonian National Air and Space Museum. Kim Shiflett/NASA hide caption

itoggle caption Kim Shiflett/NASA

Two polar bears spar on the shoreline of the Hudson Bay in November 2007. Paul J. Richards/AFP/Getty Images hide caption

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FDA Commissioner Margaret Hamburg says there is a desperate need to have the Reagan-Udall Foundation up and running. Win McNamee/Getty Images hide caption

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Health Department officials cull birds and put them in sacks after bird flu virus was detected in Bhubaneswar, India. Biswaranjan Rout/AP hide caption

itoggle caption Biswaranjan Rout/AP

This giant squid was caught about 10 miles off the shores of Oahu, Hawaii, in 1981. The pupil of its eye measured more than 3.5 inches across. Current Biology hide caption

itoggle caption Current Biology

An health official wearing protective gear culls a bird at a poultry farm after a naturally occurring bird flu virus was detected near Agartala, India, in January. Sushanta Das/AP hide caption

itoggle caption Sushanta Das/AP