ABACO, Bahamas - Although he has worked in war zones, producer James Barrat said he thinks his chances of dying were higher during his dives into The Bahamas' blue holes.

In a story on the Public Broadcasting Service (PBS) website, Barrat wrote: "I've filmed in three war zones, but I think the chances of someone dying were higher in blue holes than in Iraq, Afghanistan, and Zaire.

http://www.pbs.org/wgbh/nova/cavedive/producer.html

The producer described his experience during the 21-day expedition for PBS's Science program NOVA. He was filming with expert divers and scientists, including dive leader Brian Kakuk, scientist and cave diver, marine biologist Tom Iliffe, ornithologist David Steadman, molecular biologist Jenn Macalady, cave scientist Nancy Albury, geochemist Peter Swart, and others.

 http://www.pbs.org/wgbh/nova/cavedive/producer.html

During the dive, the team recovered "two skulls belonging to ancient humans, the fossils of vertebrates that are now extinct in The Bahamas and fossils of birds that aren't just extinct but have never before been described by science," Barrat said.

Read Barrat's entire story here

Great photos and info from NOVA on The Bahamas blue holes here (Interactive version)