March 13, 2009
Ancient turtles threatened by modern life
Leatherback turtles, survivors of the prehistoric era, are threatened with extinction by modern plastics, a Canadian researcher said.
Mike James, a biologist with Dalhousie University, said the most widely distributed reptiles on Earth are choking or starving to death after ingesting plastic garbage.
The leatherbacks are unable to regurgitate the plastic because of thousands of spines lining the throat and esophagus. The plastic can lead to obstruction of the gastrointestinal tract, resulting in digestive problems or even starvation. It has also been shown to hurt reproduction.
Plastics ingestion doesn't always cause death, but there are clearly health risks to the turtles, James said in a release.
The findings are published in the journal Marine Pollution Bulletin.