Advance of the Oil Blobs

Victim
A Northern Gannet bird covered in oil is examined by Dr. Erica Miller, left, and Danene Birtell of Tri-State Bird Rescue and Research in Fort Jackson, La. The bird was recovered in the area where a giant oil slick spread after the collapse of the Deepwater Horizon offshore oil rig.

• Fighting the Spread of Oil: The Worst-Case Scenario