Animations: Sharks Rule the Reef

Sharks have roamed our oceans since before the time of dinosaurs, but their long reign at the top of the ocean food chain may be ending. The onset of industrial fishing over the past 60 years has drastically depleted their populations. Of the shark and ray species assessed by the International Union for Conservation of Nature (IUCN), 30 percent are threatened or near threatened with extinction.

Because sharks are crucial predators, their decline poses risks for the health of entire ocean ecosystems. To help illustrate these interactions, Pew's Global Shark Conservation campaign worked with a team from the Fisheries Centre at the University of British Columbia to produce two animations about the importance of sharks in the marine environment.


Coral Reef Decline with the Loss of Sharks


Tuna/Jack Decline with the Removal of Tiger Sharks

For more information about the Pew Environment Group's global shark conservation efforts, visit www.PewEnvironment.org/Sharks or click here to learn more about the animations.

Composite image of modern city network communication concept

Learn the Basics of Broadband from Our Limited Series

Sign up for our four-week email course on Broadband Basics

Quick View

How does broadband internet reach our homes, phones, and tablets? What kind of infrastructure connects us all together? What are the major barriers to broadband access for American communities?

Pills illustration
Pills illustration

What Is Antibiotic Resistance—and How Can We Fight It?

Sign up for our four-week email series The Race Against Resistance.

Quick View

Antibiotic-resistant bacteria, also known as “superbugs,” are a major threat to modern medicine. But how does resistance work, and what can we do to slow the spread? Read personal stories, expert accounts, and more for the answers to those questions in our four-week email series: Slowing Superbugs.