
In Hatchet Fish in the Twilight Zone, narrator Sir David Attenborough describes how predators and prey interact in the "twilight zone." Watch how a hatchet fish has adapted to hide in low light and how its predator has adapted to be able to find it. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In How the Garibaldi Fish Farms the Kelp Forests narrator Sir David Attenborough shows how the “farmer” Garibaldi fish keeps the kelp forest healthy. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.

In The Tool-Using Tusk Fish, narrator Sir David Attenborough suggests that tusk fish, and perhaps other fish species, may be more intelligent than people ever thought possible. When the tusk fish finds food, such as a clam, it uses coral as a tool to crack open the clam and feed itself. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.

In The Problem With Modern Fishing, narrator Sir David Attenborough describes how technology has made commercial fishing a large-scale operation. The result: overfishing, fewer fish in the oceans, and sometimes the collapse of specific types of fish. This video is excerpted from BBC’s Horizon: The Death of the Oceans, which reveals what scientists are learning about what is happening in the oceans and whether it is too late to save their remarkable diversity.

In How Fish Clean Each Other, narrator Sir David Attenborough takes us into the reef, where fish have unique ways of working together. The wrasse cleans the skin of the predatory jack fish by eating parasites, and the jack fish respect this partnership because they need cleaning. When silvertip sharks arrive, the jack fish clean themselves by rubbing against the sharks’ sandpaper-like skin. After a while, the sharks swim away, leaving the reef to the busy fish once more. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.

In Meet the Mudskipper, a Fish Out of Water, narrator Sir David Attenborough introduces the mudskipper, a fish like no other! These fascinating creatures can breathe air, walk on land, and dig deep tunnels in the mud to create safe homes and egg chambers. Plus, male mudskippers leap high into the air to impress females and fiercely defend their territory from rivals!. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.

In The Goby Fish’s Epic Climb, narrator Sir David Attenborough introduces Hawaii's amazing rock-climbing goby, a tiny fish with a big challenge! These fish have special fins like suction cups that help them scale massive waterfalls, one slippery rock at a time. While some don't make it, the ones that reach the top find a peaceful paradise with no predators, perfect for living and raising their young. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.

In Fishing Alone in Shark-Infested Waters, host Simon Reeve joins Bari for night fishing in the pitch-black waters, where Bari must go if he has an unlucky day of fishing. Simon feels nervous about the darkness and the sharks lurking in the water. Bari faces danger each time he fishes alone, but he only takes what he needs to feed his family. Unfortunately, commercial fishing has harmed the area, making it harder for Bari to catch enough fish during the day and forcing him to take these risky trips at night. This video is excerpted from BBC’s Wilderness With Simon Reeve, an epic adventure into the heart of Earth’s last great wild areas, where nature is at its most beautiful and fragile

In Competition on the Coral Reef, narrator Sir David Attenborough describes how one predator-prey pair interact on the reef. Watch jack fish try to corral silversides who have their own defensive tactic. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In The Seamount Serves as a Gathering Place, narrator Sir David Attenborough explores life near a seamount and the various animals that live there. Some, like the tuna, come to the seamount in search of food. Others, like the hammerhead shark, receive the help of smaller fish at the seamount to rid them of their parasites. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In A Real Life Finding Nemo, Sir David Attenborough explores the unique relationship between the clownfish and the sea anemone. Often poisonous to other fish, the anemone serves as a protective home for the clownfish. The male clownfish repays the favor by keeping the anemone clean and removing debris. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.

In Frigate Birds and Sailfish on the Hunt, narrator Sir David Attenborough observes the remarkable hunting techniques of frigate birds and sailfish in the open ocean. Frigate birds soar high above the water, scanning for fish below, while sailfish — some reaching lengths of 10 feet (3 meters) — surround schools of bait fish. The sailfish cooperate with one another, using their speed, agility, and color-changing abilities to confuse and catch their prey. As the bait fish move toward the surface, frigate birds dive down to snatch them. This video is excerpted from BBC’s Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.

In Hatchet Fish in the Twilight Zone, narrator Sir David Attenborough describes how predators and prey interact in the "twilight zone." Watch how a hatchet fish has adapted to hide in low light and how its predator has adapted to be able to find it. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In How the Garibaldi Fish Farms the Kelp Forests narrator Sir David Attenborough shows how the “farmer” Garibaldi fish keeps the kelp forest healthy. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.

In The Tool-Using Tusk Fish, narrator Sir David Attenborough suggests that tusk fish, and perhaps other fish species, may be more intelligent than people ever thought possible. When the tusk fish finds food, such as a clam, it uses coral as a tool to crack open the clam and feed itself. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.

In The Problem With Modern Fishing, narrator Sir David Attenborough describes how technology has made commercial fishing a large-scale operation. The result: overfishing, fewer fish in the oceans, and sometimes the collapse of specific types of fish. This video is excerpted from BBC’s Horizon: The Death of the Oceans, which reveals what scientists are learning about what is happening in the oceans and whether it is too late to save their remarkable diversity.

In How Fish Clean Each Other, narrator Sir David Attenborough takes us into the reef, where fish have unique ways of working together. The wrasse cleans the skin of the predatory jack fish by eating parasites, and the jack fish respect this partnership because they need cleaning. When silvertip sharks arrive, the jack fish clean themselves by rubbing against the sharks’ sandpaper-like skin. After a while, the sharks swim away, leaving the reef to the busy fish once more. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.

In Meet the Mudskipper, a Fish Out of Water, narrator Sir David Attenborough introduces the mudskipper, a fish like no other! These fascinating creatures can breathe air, walk on land, and dig deep tunnels in the mud to create safe homes and egg chambers. Plus, male mudskippers leap high into the air to impress females and fiercely defend their territory from rivals!. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.

In The Goby Fish’s Epic Climb, narrator Sir David Attenborough introduces Hawaii's amazing rock-climbing goby, a tiny fish with a big challenge! These fish have special fins like suction cups that help them scale massive waterfalls, one slippery rock at a time. While some don't make it, the ones that reach the top find a peaceful paradise with no predators, perfect for living and raising their young. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.

In Fishing Alone in Shark-Infested Waters, host Simon Reeve joins Bari for night fishing in the pitch-black waters, where Bari must go if he has an unlucky day of fishing. Simon feels nervous about the darkness and the sharks lurking in the water. Bari faces danger each time he fishes alone, but he only takes what he needs to feed his family. Unfortunately, commercial fishing has harmed the area, making it harder for Bari to catch enough fish during the day and forcing him to take these risky trips at night. This video is excerpted from BBC’s Wilderness With Simon Reeve, an epic adventure into the heart of Earth’s last great wild areas, where nature is at its most beautiful and fragile

In Competition on the Coral Reef, narrator Sir David Attenborough describes how one predator-prey pair interact on the reef. Watch jack fish try to corral silversides who have their own defensive tactic. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In The Seamount Serves as a Gathering Place, narrator Sir David Attenborough explores life near a seamount and the various animals that live there. Some, like the tuna, come to the seamount in search of food. Others, like the hammerhead shark, receive the help of smaller fish at the seamount to rid them of their parasites. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In A Real Life Finding Nemo, Sir David Attenborough explores the unique relationship between the clownfish and the sea anemone. Often poisonous to other fish, the anemone serves as a protective home for the clownfish. The male clownfish repays the favor by keeping the anemone clean and removing debris. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.

In Frigate Birds and Sailfish on the Hunt, narrator Sir David Attenborough observes the remarkable hunting techniques of frigate birds and sailfish in the open ocean. Frigate birds soar high above the water, scanning for fish below, while sailfish — some reaching lengths of 10 feet (3 meters) — surround schools of bait fish. The sailfish cooperate with one another, using their speed, agility, and color-changing abilities to confuse and catch their prey. As the bait fish move toward the surface, frigate birds dive down to snatch them. This video is excerpted from BBC’s Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.