Topic: underwater

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The Titicaca water frog’s baggy skin

At Lake Titicaca, the largest lake in South America and the highest large lake in the world, there's less oxygen available in the air and water. This is where the Titicaca water frog (Telmatobius culeus) lives. It has...

A dreamlike swim in an underwater wheelchair: Sue Austin’s ‘Creating the Spectacle’

Filmed among the sea life in Sharm el Sheikh, Egypt, British multimedia, performance, and installation artist Sue Austin gently swims through the water in a specially-adapted underwater wheelchair. The dreamlik...

A massive Ocean Sunfish in the Galápagos

In this exciting moment from the BBC's Mission Galápagos, Liz Bonnin joins marine biologist Tierney Thys and MV Alucia submersible pilot Mark 'Buck' Taylor in what looks like a Triton 3300/3 submersible. At 82 meters ...

What do sand dollars look like when they’re alive?

Pristine white sand dollars have long been the souvenir to commemorate a successful day at the beach. But most people who pick them up don’t realize that they’ve collected the skeleton of an animal, washed up at the e...

Planet-changing ‘invisible’ microbes on the deep sea floor

"We're making progress at a rate that's outpacing the textbooks. We can't write textbooks fast enough to cover all of the really fundamental discoveries that are happening in the field of microbial ecology right now.....

Leptocephalus, a transparent eel larva in the wild

A pale liquid in the ocean currents? Plastic pollution? An eel's ghost? An eel larva! This undulating creature is a large Leptocephalus, a not-often-seen eel in its larval stage. It was filmed by Barry Haythorne and R...

How do garden eels eat?

Alexandra Khrizman and colleagues at the Hebrew University of Jerusalem and Tel Aviv University made more than 100 dives and planted cameras among garden eels to determine how they handle currents, and whether being s...

The benefits of sea cucumber poop

There are about 1,250 different species of sea cucumber across the world's oceans. This is Thelenota anax. And yes, it's doing what you think it's doing. Sea cucumber poop is surprisingly important for the ecosystem. ...

Hydrophytes, 4D-printed aquatic ‘plants’ for the future

Tentacles wiggle. Filaments expand. Tails spiral. Looking like coral polyps, sea pens, crustaceans, and other colorful aquatic lifeforms, these multi-material 3D printed 'plants' come alive. Triggered by air that's pu...

These stunning sea slugs steal ‘weapons’ from their ingested hydroid prey

Bright blues, vibrant yellows, blazing oranges, striking reds, rich purples, electric greens, hot pinks, and some milky pastels, all in pops, spots, stripes, and bold color fields. These colors belong to around 3,000 ...

Scallops have lots of tiny eyes that act like tiny telescopes

Things you may not know about the marine bivalve molluscs called Pectinidae or scallops, as seen in the Hakai Institute video above: 1. They can swim freely for short distances to escape predators or relocate them...

Five big sharks that help keep our oceans healthy

You're probably familiar with the great white shark, but how much do you know about these other big sharks: blacktip, tiger, sand tiger, galapagos, and whale? Those are just five of roughly 500 shark species found in ...

Why Earth Has Two Levels

Earth’s outer shell is made of two materials whose different densities and thicknesses give rise to two distinct “levels” on the planet’s surface. And evidently these two materials—continental crust and more dense ...

Well Being, an animated short by Domee Shi

An unruly little kid loses a ball down a well, enlisting help from the innocent fella who was being hit with the ball just minutes before. Down into the well by bucket we go. Spot the ball floating in the cave water.....

The Cephalopod Empire in Woods Hole, Massachusetts

Bret Grasse lovingly calls the Cephalopod Operations division at the Marine Biological Laboratory (MBL) in Woods Hole, Massachusetts the “cephalopod empire.” The lab houses roughly 2,000 to 3,000 cephalopods—likely th...

Rebuilding the world’s coral reefs with coral farming

Coral are the backbone of the whole tropical ecosystem and if they disappear we’re in a lot of trouble says Ken Nedimyer, founder of the Coral Restoration Foundation. The pseudo-farmer has spent a lot of time in the w...

How deep is the ocean?

How deep is the ocean? How far down have humans traveled and what did we find when we went there? This Tech Insider animation shows us the "vast distance between the waves we see and the mysterious point we call Chall...

A swarm of hungry moon jellies

This massive swarm of moon jellies (Aurelia aurita) swims in Alaskan waters where salmon eggs will make for an easy meal. Eggs that aren't eaten will grow into salmon and will make their way into larger bodies of wate...

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