In Pictures: Endangered animals
In Pictures: Hybrid animals
In Pictures: Climate change and animals
In Pictures: The Copenhagen Climate Conference
In Pictures: Animals of the Galapagos
In Pictures: Animal migrations around the world
Environmental activists and participants take part in a performance to mark World Earth Day at the Seoul City Hall plaza in central Seoul, South Korea, on April 22. Earth Day marks an annual effort to raise public awareness about the environment and inspire actions to clean it up. Jo Yong-Hak/Reuters
Malaysian activists hold a banner and placards during a protest held in conjunction with the Earth Day against a RM700 million (US $230 million) rare earth plant currently being built by Australian miner Lynas Corp. Ltd. in central Pahang State, in Putrajaya, Malaysia, on April 22. The banner reads: 'Earth Day, A Protest to Save the Earth.' Lai Seng Sin/AP
Environment activists hold up a replica of a globe as they commemorate Earth Day in Makassar, South Sulawesi, on April 22. Yusuf Ahmad/Reuters
A Malaysian activist holds a sphere bearing the words 'Save The World' during a protest held in conjunction with the Earth Day against a RM700 million (US $230 million) rare earth plant currently being built by Australian miner Lynas Corp. Ltd. in central Pahang State, in Putrajaya, Malaysia, on April 22. World Earth Day falls on April 22 every year. Lai Seng Sin/AP
A woman holding a plant poses for photographers during a campaign to mark World Earth Day at the Seoul City Hall plaza in central Seoul, South Korea, on April 22. Jo Yong-Hak/Reuters
A woman and her daughter touch a structural model of Earth's core at Nanjing Geological Museum in Nanjing, Jiangsu Province, on April 22. The Chinese characters on the model read 'outer core.' Sean Yong/Reuters
South Korean environment activists wearing gas masks and raincoats stage a rally to commemorate upcoming Earth Day in Seoul, South Korea, on April 21. The activists denounced nuclear facilities in South Korea. The letters read 'Stop Radioactive tears of the Earth.' Ahn Young-joon/AP
Students pose for a photo with a globe during a campaign to mark World Earth Day in a middle school in Dexing, Jiangxi Province, China on April 19. World Earth Day falls on April 22 every year. China Daily/Reuters
Israeli industrial designer Hadas Itzcovitch and her dog stand next to a model of a world globe she created using recycled bottles ahead of Earth Day in the city of Petah Tikvah near Tel Aviv, Israel, on March 24. Ariel Schalit/AP
Volunteers lie in a sand sculpture created by artist Todd Brittingham titled 'Sun and the Moon' at Jetty Park in Cape Canaveral, Fla., on April 17, during an Earth Day celebration. Brittingham of Fort Lauderdale, Fla, has been doing Earthworks for the past 23 years. The sculpture is dedicated to the ending of the space shuttle program with stars dedicated to the lost space shuttle astronauts. Craig Rubadoux/Florida Today/AP
Filipino activists march as they hold signs against the use of nuclear power during a rally in Manila, Philippines, on April 19. The group held the protest to mark Earth Day ahead of its global commemoration on April 22. Aaron Favila/AP
Taiwanese singer A-mei listens to some natural sound during an Earth Day activity 'Listen to the Earth' in Taipei, Taiwan, on April 16. Chiang Ying-ying/AP
A group of students put the finishing touches to a pavement painting during their campaign to protect the environment, part of the celebration of Earth Day, on April 16, in suburban Quezon City, north of Manila, Philippines. Pat Roque/AP
A female student attaches cut-out paper leaves on a mock paper tree made of cardboard to dramatize their demand to save the environment as part of the celebration of Earth Day, April 16, in suburban Quezon City, north of Manila, Philippines. The students want commercial logging and mining curtailed. Pat Roque/AP
In this photo, Earth Day volunteers Mark Capaccio of San Francisco (r.) and Leticia Pereira of Oakland, Calif., join other volunteers to remove weeds in a community garden as they work to restore Candlestick Point State Recreation Area's community garden in San Francisco on April 16. Hundreds of volunteers helped restore the area in celebration of Earth Day, which is officially held on April 22. Darryl Bush/California State Parks Foundation/AP
Photos of the Day: Photos of the day 05/24
In Pictures: Ultra-Orthodox Jews
Photos of the Day: Photos of the day 05/23
In Pictures: Huge hurricanes
In Pictures: Oh to be young again, Mr. President!
In Pictures: Facing the devastation of the Oklahoma tornadoes
Photos of the Day: Photos of the day 05/22
Photos of the Day: Photos of the day 05/21
In Pictures: Sinkholes around the world
Hezbollah leader Sheikh Hassan Nasrallah said Hezbollah will fight to keep Syria's Bashar Assad in power. He also said Hezbollah fighers are fighting in Syria against Sunni Islamic radicals.
The leader of Lebanon's Hezbollah militant group vowed to help propel President Bashar Assad to victory in Syria's bloody civil war, warning that the fall of the Damascus regime would give rise to extremists and plunge the Middle East into a "dark period."
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