Sharks: Stewards of the Reef

In this trailer, experts discuss the importance of sharks to the health of coral reefs. Marine ecologist Enric Sala of Scripps Institution of Oceanography talks about the role of sharks as top predators in ocean ecosystems. Peter Knight, executive director of WildAid, and Sonja Fordham of the Ocean Conservancy detail the decline of shark populations worldwide as a result of fishing pressure (3:23)

Latest Videos

Preview thumbnail for video'Timelapse Footage of a Giant Caterpillar Weaving Its Cocoon
Timelapse Footage of a Giant Caterpillar Weaving Its Cocoon (2:34)
Preview thumbnail for video'Why Do Giraffes Have Patches?
Why Do Giraffes Have Patches? (1:55)
Preview thumbnail for video'Crazy Vintage Footage of Park Visitors Feeding Bears
Crazy Vintage Footage of Park Visitors Feeding Bears (1:08)
Preview thumbnail for video'Cameras Capture a Hornet Hatching Up-Close
Cameras Capture a Hornet Hatching Up-Close (2:26)
Preview thumbnail for video'Two Giant Killer Hornet Colonies Battle to the Death
Two Giant Killer Hornet Colonies Battle to the Death (3:24)
Preview thumbnail for video'Incredible: Five Lions Take Down a Giraffe
Incredible: Five Lions Take Down a Giraffe (2:49)
Preview thumbnail for video'The Real Way Komodo Dragons Kill Prey
The Real Way Komodo Dragons Kill Prey (2:28)
Preview thumbnail for video'Why Honey Bees Are Crucial Employees at this Airport
Why Honey Bees Are Crucial Employees at this Airport (2:21)
Preview thumbnail for video'Hammerhead vs. Stingray
Hammerhead vs. Stingray (2:25)