Tiger sharks have gained notoriety for their voracious appetites — they'll devour just about anything, from sea turtles to kegs of nails to a few unlucky humans — yet of late, it is their mysterious travel habits that have excited interest in the scientific community.Full story
Federal scientists trying to figure out why dolphin deaths along the Gulf of Mexico are up this year now have a second challenge: a sharp jump in sea turtle deaths in some Gulf areas. Full story
Leatherbacks are the Olympians of the turtle world. They swim farther, dive deeper and venture into colder waters than any other marine turtle species. Full story
NBC's environmental expert Jeff Corwin reports on a sea turtle that was returned to the Gulf after being found during the oil spill disaster.
A dead sea turtle is seen washed ashore on April 14, in Waveland, Miss. Endangered sea turtles and dolphins are still dying in high numbers in Mississippi, which continues to be impacted by tar balls and weathered oil. There have been 67 reported sea turtle deaths in Mississippi as of April 11 and m
PASS CHRISTIAN, MS - APRIL 16: A dead endangered sea turtle is seen after it washed ashore April 16, 2011 in Pass Christian, Mississippi. Local turtle activist Shirley Tillman says she has discovered 20 dead sea turtles in Mississippi in the month of April alone and suspects they are dying due to t
