Hundreds of great white sharks have appeared on the doorstep of one of America’s most popular tourist destinations, hunting in ways never documented before. To understand why the sharks are here and what this means for Cape Cod, scientists are studying this new phenomenon, to keep people safe. Are the sharks changing the natural ecosystem … or restoring it?

Broadcaster: National Geographic, Disney+

The Great White shark has returned to Cape Cod in staggering numbers over recent years. Why are they back? And how can studying these sharks keep people safe in the water?

Signs on popular beaches warn Cape Cod beachgoers of the risks when entering the water.

Dr. Greg Skomal prepares to tag a Great White Shark off the coast of Cape Cod.

Grey seals, a Great White shark’s favourite meal, line the beaches around Cape Cod.

Dr Greg Skomal and Dr Megan Winton tagging Great White sharks off the coast of Cape Cod. Greg and Megan are hoping to use new science to understand the predatory behaviours of White sharks in the area, in order to better protect the public.

The only way to easily spot Great White sharks in Cape Cod is by plane. And no-one sees more sharks than spotter pilot, Wayne Davis.

Grey seals.