Albert N. Gore Jr., a Democratic candidate for the U.S. Senate, speaks at the Neshoba County Fair in Philadelphia, Miss., on Aug. 2. Gore is running against incumbent Republican Roger Wicker. He says there should have been younger people interested in taking on Wicker — "but they didn't want to fight."
Rogelio V. Solis/AP
Invasive brown tree snakes have gobbled up most of Guam's native forest birds. Without these avian predators to keep their numbers in check, the island's spider population has exploded.
Isaac Chellman/Rice University
Syrian rebels pose after seizing control of the Bab al-Hawa border post on the Syrian-Turkey border on July 20. Now, the rebels are facing a new challenge: radical Islamists, who they say do not represent them.
Bulent Kilic/AFP/Getty Images
U.S. Defense Secretary Leon Panetta has lunch with engineering cadets at the Chinese military academy in Beijing on Wednesday. Just before Panetta's arrival for talks with top leaders, China released photos of a new stealth fighter under development.
Larry Downing/Getty Images