Watch the first-ever footage of an octopus using shell armor to hide from a shark!
The clownfish male is under constant surveillance by the female to ensure his egg-caring performance is up to par.
It’s the best way to keep their young safe in busy tropical waters.
The signature Spinner dolphin twist: maybe for communication, maybe just for fun.
It’s a seadragon dad’s job to carry the fertilized eggs until they hatch.
A mother humpback whale must go without food while her calf consumes 500 liters of her milk a day.
Starfish race for the highest point to spawn.
Octopuses live and breathe underwater, but that doesn’t stop the Australian Abdopus from roaming on land, too.
A crab must run the gauntlet to reach its far away feeding grounds.
These highly social boto dolphins use sonar and teamwork to navigate life in the murky water they call home.
A gathering of orca whales use fascinating teamwork to hunt herring.
One touch from this beautiful but deadly creature is enough to paralyze.
Only one hatchling in 1,000 will survive to adulthood, but the ones that do can live over 80 years.
Suction cup cameras provided the ‘Blue Planet II’ crew with a whole new perspective of a sperm whale family.
In these Indonesian waters, whale sharks are protected and thriving.
Humpback whales use ingenious teamwork, bubbles and sound to trick herring to the surface.
A seadragon couple shares a graceful dance in the evening light.
The last hatchling on the beach dodges predators from above and below on her way to the safety of the sea.
Sperm whales can dive up to 3,280 feet deep. Meet the underwater cameraman who managed to capture this split-level footage..
Coral has been found all the way down at 6,000 meters deep, but these reefs are incredibly vulnerable.
A clownfish family comes together to make home improvements.
Can this eel escape a toxic brine pool death trap at the bottom of the sea?
Few people have ever been this close to the stunning San Rafael glacier — the fastest calving glacier in the world.
This remarkable sea lion hunting technique is unique to the Galapagos — and hungry pelicans get to reap the benefits, too!
A mother otter keeps her pup warm and fluffy while teaching it how to hunt.
A female turtle spends five long years returning to her birth site to lay hundreds of eggs of her own.
Emperor penguins — serial monogamists —move from ocean to ice to choose their mates for the year.
What better way to celebrate your birthday than with beluga whales and polar bears?
At this Florida manatee hangout, youngsters get the chance to meet some unusually chilled-out reptiles.
Here’s how to hunt in the shallowest of waters.
As the largest herbavores in the sea, dugons can eat an entire football field’s worth of sea grass in a single day.
In temperate seas, there are even more squid than fish.
With the help of angelfish, this oceanic wanderer rids itself of clingy parasites.
Measured from the sea floor, some of these peaks are taller than Everest!
The weirdest deep sea creature in the world of the strange.
A whale shark enjoys it’s annual plankton feast while other fish use it as a giant shield.
As their ice world disappears, polar bears have been known to swim up to 60 miles offshore in search of food.
This mama otter keeps her baby’s fluff on fleek.
Watch how this humpback family works together to hunt off the coast of Alaska.
Oarfish look like giant seafish and can grow up to 36 feet long!
Simplicity is the key to a jellyfish’s success.
Pigs can’t fly, but they sure can swim!
Young manatees boop noses with alligators in the warm pools off the coast of Florida. Explore North America on an all-new ‘Seven Worlds, One Planet’ this Saturday at 9/8c.
Of all the hungry hunters, these are the ones that salmon can never see coming.
Underwater predators are joined by dive-bombing birds to hunt for prey.
Narwhals are some of the most mysterious and elusive animals in the oceans.
Red starfish, nemertine worms and sea urchins flourish under the Antarctic ice.
Male humpback whales compete with each other while racing after a female.
Sea snakes breed in underwater caves and have some of the most toxic venom in the world.
You better look out below…. and above!
These unique fish spread their wings and leave the ocean to escape predatory Dorados.
Explore the tricked-out boat ‘The Hunt’ crew used to film elusive deep-sea predators.
The world’s largest animal can weigh up to 190 tons.
The ‘Blue Planet II’ crew went old-school to film airborne Giant trevally in South Africa.
The ocean’s master of disguise uses its superpower to hunt crabs and hide from sharks.
Discover how the ‘Blue Planet 2’ crew filmed a mother walrus and her pup using the UHD Mega-dome.
Filming a blue whale feeding underwater is not for the faint of heart.
See how ‘Blue Planet II’ cameramen used special slow-motion cameras to capture high-speed, bird-on-bird theft!
In the words of ‘The Hunt’ cameraman: “It was the most extraordinary thing I’ve ever seen”
After reaching a certain body size, Kobudai fish can change from female to male!
No bird is safe from these giant trevally, who’ve learned how to calculate the trajectory of their prey in flight.
Sit back and let the sound of the ocean wash over you.
Dolphins, sailfish, and rays all get in on the lanternfish hunting action.
Around the first full moon of winter, hundreds of thousands of spider crabs gather to shed their shells.
Meet the group who’ve been helping dolphins suffering from plastic since the 1980’s.
With an oversized left eye, this deep-sea squid can detect silhouettes of prey swimming above.
Over four years of filming, the ‘Blue Planet II’ crew witnessed key changes in the world’s oceans.
It took a very special camera stytem to film the lives of the creatures of the reefs.
How far will a blenny go for love?