The week's best photos
APTOPIX Dolphins Study Mississippi
In this May 16, 2012 photo, a dolphin races ahead of a freighter's bow north of Petit Bois Island, near Pascagoula, Miss. The National Oceanic and Atmospheric Administration has been conducting photo identification of dolphins in the Mississippi Sound as part of the assessment of damages from the Deepwater Horizon oil spill. (AP Photo/The Mississippi Press, Harlan Kirgan)






