New find could help save Galapagos hammerhead sharks loading...
New find could help save Galapagos hammerhead sharks
The sharks give birth in secluded bays that scientists worry may be exposed to fishing.
What it Takes to Guard a Giant Shark Sanctuary loading...
What it Takes to Guard a Giant Shark Sanctuary
An unlikely group—including a National Geographic explorer and a former shark smuggler—team up to protect the Cook Islands' sharks.
How Magnets Keep Sharks Safe—From Us loading...
How Magnets Keep Sharks Safe—From Us
Magnets repel sharks, studies show, by interfering with their ability to sense electrical fields.
6 Amazing Sharks You've Never Heard Of loading...
6 Amazing Sharks You've Never Heard Of
From tiny plant-eaters to huge Arctic dwellers, these sharks are far more fascinating than fearsome.
Shark Species Thought to Be Extinct Turns Up in Fish Market loading...
Shark Species Thought to Be Extinct Turns Up in Fish Market
In Kuwait, a smoothtooth blacktip shark was the catch of the day.
7 Demonic Creatures: Thorny Devil, Satanic Gecko, And More loading...
7 Demonic Creatures: Thorny Devil, Satanic Gecko, And More
For some diabolical-looking animals, “you look like hell” may not be so much of an insult.
Two-Headed Blue Shark Surfaces in Australia loading...
Two-Headed Blue Shark Surfaces in Australia
There have only been a handful of reported cases of two-headed sharks.
This Beetle Can Withstand 40 Times More G-Force Than a Fighter Pilot loading...
This Beetle Can Withstand 40 Times More G-Force Than a Fighter Pilot
Click beetles are among nature's many unsung acrobats with clever strategies for escape.
Swarms Of Huge Sharks Discovered, Baffling Experts loading...
Swarms Of Huge Sharks Discovered, Baffling Experts
Basking sharks sometimes congregate in groups of up to 1,400, a new study of aerial surveys reveals.
About the Show
In a remote corner of the South Pacific, National Geographic Explorer Enric Sala – one of the world’s leading marine ecologists – leads an elite team into an isolated underwater Eden. Sharks reign in the southern Line Islands, where humans rarely visit and survival is still of the fittest. Completing a daring survey of life on the reef from the micro to the mega, the research team uncovers secrets in what could be the last unspoiled archipelago on Earth. Covering nearly 3,300 kilometres on the 30-day expedition, the team faces a host of dangers – exposed to powerful currents and huge waves. What they find calls into question everything we know about a healthy reef ecosystem. Along the journey, they find over three times as much coral as any other reef in the Indo-Pacific on Flint Island. Surrounding Malden Island – the test site of three nuclear bombs in 1958 – the team finds a reef exploding with life and ten times more sharks than any other studied reef on the planet. Millennium Atoll offers a surprising refuge for blacktip reef sharks while Starbuck Island has the second largest biomass of any reef ever studied.

Newsletter

Never miss a Nat Geo moment

Your email address
Submit