For over 500 million years, the jellyfish has survived in our oceans. Today, global warming and pollution may be contributing to a population explosion, as billions of these sometimes venomous creatures increasingly swarm around our beaches and shorelines. And though they have no bones, blood or brain, some jellyfish are armed with a deadly arsenal unlike any other on the planet. National Geographic dissects the fascinating physiology of this living fossil, from its 24 clustered eyes down to the tips of its stinging tentacles, and examines how man's impact on the environment may be creating a growing invasion.
Not available for shipment outside of the U.S. and Canada.
For the first time ever, National Geographic presents its programming in DVD-R format. Available exclusively through this site, you can now own more of our award-winning specials and documentaries in a high-quality DVD format.
How our DVDs and DVD-Rs Differ
Customers who purchase programs in the NG DVD Exclusives Library will receive a non-interactive, play only disc. There is no chaptering information on these DVDs, but there are chapter marks approximately every five minutes, which make it easy to fast forward through a program. The DVD-R format provides the digital video and audio quality you expect from all of our DVDs.
NOTE: The NG DVD Exclusives titles are not closed-captioned. We apologize for any inconvenience this limitation may cause.
Circle the globe with National Geographic on an
underwater voyage powered by earth's great ocean currents, the incredible superhighways of marine life. You'll plunge into an alien world where millions of sea creatures, from tiny seahorses to enormous sharks, spend ...
In the harsh northern reaches of Canada's Ellesmere
Island, elusive arctic wolves share their secrets with two patient observers. Shielded by their remote location and inhospitable climate, these wild animals have not yet learned to fear humans. This is the ...
Join renowned wildlife filmmakers Dereck and Beverly Joubert
as they capture the drama of Africa's largest free-roaming elephant herds on their timeless journey across the bush country of northern Botswana. Two years in the making, this remarkable documentary reveals extraordinary ...