Identification of each animal in a collective becomes possible even when individuals are never all visible simultaneously, enabling faster and more accurate analysis of collective behavior.

After smartphones were cleared by NASA for space missions, the crew members of the Integrity spacecraft are beaming back lots of iPhone photos. Jeff Carlson writes about mobile technology for CNET. He ...

• US aircraft downed: The status of a US service member remains unknown after an F-15 fighter jet was shot down over Iran. The jet’s other crew member was rescued, US sources told CNN. Iran also ...

• Opening the strait: The UN Security Council is set to vote Friday on a Bahraini proposal that would authorize countries to use “all defensive means necessary” to secure the Strait of Hormuz. More ...