Today, we think of penguins as small-ish, waddling, tuxedo-birds. But they evolved from a flying ancestor, were actual giants for millions of years, and some of them were even dressed a little more casually.

We’re living longer. Dying less. Human life expectancy has doubled in just a couple centuries. Machines and meals and medicines keeping us alive long past the age where we can make babies. Does this mean our species is no longer under...

Snorkelers, surfers, divers. They all use them… wetsuits! So how do they work to keep you warm? It turns out layers of materials, and water itself!

Seymour might have had better luck had he raised one of these Bornean plants instead of a giant Venus flytrap. Instead of evolving to eat animals, they’ve evolved to play nice in exchange for their nutrient rich feces.

Octopus, squid and cuttlefish -- collectively known as cephalopods -- have strange, massive, distributed brains. What do they do with all that neural power? Dive into the ocean with marine biologist Roger Hanlon, who shares astonishing...

NASA's looking to send a giant robotic space eel to explore Europa, and a submarine to Titan. Let's go for a swim!

Generally, when you think of carbon monoxide, nothing good comes to mind. And that’s… pretty reasonable. But elephant seals show us how we might be able to use carbon monoxide as an effective therapy for heart attacks and strokes.

When the ancestor of cetaceans went back into the water some 50 million years ago, it left a few things behind—including the functioning of certain genes that seem like they’d be hard to live without.

Lice don’t just thrive in the biomes of body hair and fur, they can also live in a place that seems like it should be bug-free: the oceans.

SciShow News looks at some of the firsts, highests, and lowests of the year in science.

In this illuminating talk, Richard Pyle shows us thriving life on the cliffs of coral reefs and groundbreaking diving technologies he has pioneered to explore it. He and his team risk everything to reveal the secrets of undiscovered...

Summer is coming to a close, but there is still time to take a cool, refreshing dip in the water of your choice. Before you do, be sure to check out this swimming compilation to get answers to all the questions you didn’t even know you...

"The bends" is one of the biggest risks that humans have to deal with when diving, but why don't marine animals, which are diving all the time, get them?

Crocodiles have four-chambered hearts, just like we do! But, while our hearts do just fine with four valves, they have a slightly different approach…

Snorkelers, surfers, divers. They all use them… wetsuits! So how do they work to keep you warm? It turns out layers of materials, and water itself!

Seymour might have had better luck had he raised one of these Bornean plants instead of a giant Venus flytrap. Instead of evolving to eat animals, they’ve evolved to play nice in exchange for their nutrient rich feces.

Why are humans so slow to react to looming crises, like a forewarned pandemic or a warming planet? It's because we're reluctant to rethink, say organizational psychologist Adam Grant. From a near-disastrous hike on Panama's highest...

the Catlin Seaview Survey will be taking thousands of 360 degree panoramas of the Great Barrier Reef, not just for science, but so that every person with an internet connection can experience the world's largest structure...at least...

A video entitled "Rational Number Applications" which shows how negatives can appear in real-life situations such as negative bank balances, negative temperatures, and heights below sea level.

Howcast - Check out part 9 and beat Episode 4: "The Survivors" of Jurassic Park: The Game with this online demo of the third-person adventure .

Dive into this heavenly site for scuba diving and snorkeling and see colorful marine life in the Cousteau Underwater Reserve, a protected Caribbean jewel.

Dive with Julien Borde into the mystical cenotes, exploring their unique beauty and the serene experience they offer.

The Maldives:We close our adventure in The Maldives, a group of paradisiacal Islands in the China Sea. We will explore its capital, "Male," and get to know its culture and traditions by visiting the famous Fish Market and local market of...

Azores Islands, Portugal:"Finally, we will know the Azores Islands flying in paragliding. So spectacular are the places that the Azores offer for the paragliding flight that the site of 'Sete Cidades,' on the island of San Miguel, was...