Crystal River has long been a safe haven for the Florida manatee, but when an invasive algae wiped out the eelgrass that manatees need for food, the community rallied to restore the river and save the animals that call it home.

This specialist hunter knows just how dangerous their prey can be. To solve this problem, they hypnotise crabs by changing the colour of their skin.

150 million years ago dinosaurs ruled the land, but the oceans were dominated by a mysterious sea monster. Sir David Attenborough joins two of the UK’s most intrepid fossil hunters on their perilous expedition to excavate the skull from its resting place...

Off the west coast of California, deep in the kelp forest, an angel shark lies hidden in the sand waiting to ambush its prey. This predator can strike in a tenth of a second, but it can't always keep its dinner down...

Explore the world’s greatest icons of water. From the mighty Nile river, over Victoria Falls, into Mexico’s crystal cave, and onwards to the water-worlds of Kakadu, the Amazon and Dead Sea, this is water in all its glory.

Top 12 Most Amazing Abandoned Ships In The World. There are two common ways to cross the sea - by plane or by boat. Planes are speedy, but ships offer scenic views. Good ships can sail for over thirty years before being respectfully dismantled. Yet, not a...

Ever see a clam dig itself into sand? It was low tide, so this clam decided to hide underground. It tried to dig its way through the moist sand and made some weird noises while doing so.

This kitten was raised by dogs — watch him run with the pack straight into the ocean the first time he goes to the beach! 💛

Scientists discover a new species lurking in the depths of the southern ocean. This is the Antarctic Strawberry Feather Star. Researchers describe it as a large creature with 20 arms.

To attract a female fish, the Japanese Puffer fish will work 24 hours a day, for an entire week in a row, to create the most stunning sand art.

Titanic remains to be one of the most memorable and iconic ships of all time. At her time, Titanic was the largest ship ever. But how does it compare to other largest ships?

A great research documentary on the extreme depths of the Mariana Trench and the mind blowing unseen sea creatures. Very well narrated documentary by David Attenborough. The Mariana Trench or Marianas Trench is located in the western Pacific Ocean about 2...

There are many other ancient shipwrecks that have been discovered around the world. One of the most famous ancient shipwreck is the Titanic, which sank in 1912. However there are shipwrecks that were old enough that dates back into Greek, Roman and Babylo...

Enjoy the Stunning 4K Underwater Wonders. Helps Relax & Fall Asleep FAST! Relax with beautiful fish, Manta rays, Sea anemones, Jellyfish, Sharks, and more! Music for relaxation, sleep, meditation, yoga and studying.

The Marianas Trench is the deepest place on earth, deeper than Mt. Everest is high. The trench is where the ocean floor disappears into the center of the earth. Find out more in Season 1, Episode 2, "The Deepest Place on Earth."