In wintertime, the waters of the North Atlantic are particularly treacherous. Monstrous storms can flare up at any moment. But as underwater cameraman Ken O'Sullivan discovers, these storms are a huge source of fertility in the ocean. He also meets a grou...

In the southern part of Mexico City lies Xochimilco, a maze of canals filled with boats, music, food and tourists. But Xochimilco is more than that. It’s one of the last remnants of the interconnected lakes that once surrounded Tenochtitlan, the ancient c...

In January, a giant piece of ice broke off from an Antarctic ice shelf, revealing a seafloor ecosystem that has never been accessible to humans.

In 2021, researchers reported a shocking disappearance in the Bering Sea. Not of people, but of Alaskan snow crabs. And it's taken scientists years to understand how tens of billions of crabs disappeared all at once, so let's take you through the mystery...

In 1938 a woman in South Africa makes a strange discovery of an unknown 5-foot-long fish. Coelacanths are an ancient group of lobe-finned fish in the class Actinistia. As sarcopterygians, they are more closely related to lungfish and tetrapods than to ra...

The North Sea gained popularity in recent years on TikTok illustrating the dangers sailers face while accompanied by a popular Sea Shanty. Dive deep into the captivating world of the North Sea! Sailors' challenges, wild weather, and untamed beauty await.

By scanning the locations at the bottom of the ocean where sunken ships, treasures and even cities lie, the show tries to answer what they look like, how they got there and if they hide any secrets. This video is a MEGA 4.5 hours!

Beneath the coastal waters of the Japanese island of Yonaguni lies a series of mysterious rock formations. Since its discovery nearly 35 years ago, the strangely symmetrical shapes and structures of the 'Yonaguni Monument' have led to fierce debate over i...

The 1700 Cascadia earthquake and tsunami was a massive natural disaster that reshaped the Pacific Northwest. Through tree rings, soil layers, and international collaboration, scientists have pieced together the exact timing of the event. As the region bra...

It looks like a prehistoric shark that lost a tail in an epic battle and might seem to be the world's weirdest and most defenseless fish in the world. It can barely swim and has been described as a giant drifting all-you-can-eat buffet for predators. So,...

Under the ice freeze of Antarctica, the water normally remains around minus two degrees. This might sound cold, but compared to the icy surface, it's a balmy and stable climate. However, danger from above can sometimes make its way down to the ocean floor...

A massive, rarely seen sea creature was discovered in La Jolla Cove last weekend. Kayakers and snorkelers in the water at La Jolla Cove found a dead oarfish, measuring nearly 12 feet in length. The discovery is only the 20th time the deep-sea creature ha...

Despite decades of diligent research, there's still so much that we don't know about the deep sea. Join us for a new episode of SciShow as Hank Green takes you through seven unsolved mysteries about the deep ocean that will blow your mind!

Explore how fish use their gills to breathe, and how these processes make them some of the most efficient breathers on Earth.

A discovery in the dark depths of the Pacific Ocean is challenging the scientific consensus of how oxygen is produced and has even called into question how life on Earth began.