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MBARI's spectacular deep-sea sightings from 2025—in stunning 4K

MBARI's spectacular deep-sea sightings from 2025—in stunning 4K

135.8K views10 months ago

YouTubeMBARI (Monterey Bay Aquarium Research Institute)

Meet a stunning group of deep-sea swimmers, including two newly named species

Meet a stunning group of deep-sea swimmers, including two newly named species

4.3K views12 hours ago

YouTubeMBARI (Monterey Bay Aquarium Research Institute)

Rare squid spotted off California’s Central Coast

Rare squid spotted off California’s Central Coast

260 views2 days ago

Deep-sea jellies, siphonophores, and more: MBARI's Southern California expedition

Deep-sea jellies, siphonophores, and more: MBARI's Southern California expedition

15.1K views3 months ago

YouTubeMBARI (Monterey Bay Aquarium Research Institute)

As we say goodbye to 2025, we’re reflecting on a year of dazzling discoveries.⁠ 💫 ⁠ Using advanced underwater robots, MBARI captured extraordinary 4K footage of deep-sea life that continues to inform our understanding of ocean health and connect audiences with Earth’s largest—and least explored—ecosystem. If you haven’t seen it already, head over to our YouTube Channel and watch the full 2025 highlights video, showcasing all the remarkable residents of the deep that we hope you fall in love wit

As we say goodbye to 2025, we’re reflecting on a year of dazzling discoveries.⁠ 💫 ⁠ Using advanced underwater robots, MBARI captured extraordinary 4K footage of deep-sea life that continues to inform our understanding of ocean health and connect audiences with Earth’s largest—and least explored—ecosystem. If you haven’t seen it already, head over to our YouTube Channel and watch the full 2025 highlights video, showcasing all the remarkable residents of the deep that we hope you fall in love wit

14.1K views9 months ago

She Guarded Her Babies for 4 Years Without Eating — The Mother Octopus | A True Story Short Film

She Guarded Her Babies for 4 Years Without Eating — The Mother Octopus | A True Story Short Film

YouTubeCold Case Earth

This Octopus Mom Guarded Her Eggs For 4.5 Years

This Octopus Mom Guarded Her Eggs For 4.5 Years

1.1K views6 days ago

YouTubeThe Abyss Log

She Sat on Her Eggs for 4.5 Years. This Is What It Cost Her

628 views6 days ago

Meditate for a moment by gazing into the mesmerizing eyes of the deep-sea rattail fish. Rattails, or macrourids, are common throughout the world’s ocean. They are characterized by a distinctive large head and whip-like tail that tapers to a point. Big blue eyes give the rattail an edge at finding food in deep dark waters. Their keen eyesight reveals prey, like fishes and squid, darting just above the seafloor. There are over 1,000 species of rattails found worldwide, although MBARI has recorded

601.5K viewsJun 4, 2024

Wake up, babe. New MBARI species just dropped. 🤩🙌🏽 MBARI researchers have discovered a remarkable new species of sea slug that lives in the deep sea. Bathydevius caudactylus swims through the ocean’s midnight zone and lights up with brilliant bioluminescence. With a voluminous hooded structure at one end, a flat tail fringed with numerous finger-like projections at the other, and colorful internal organs in between, the team initially struggled to place this animal in a group. Because the ani

540.6K viewsNov 12, 2024

MBARI's advanced underwater robot reveals a new species of deep-sea snailfish

431.2K viewsSep 8, 2025

YouTubeMBARI (Monterey Bay Aquarium Research Institute)

Our newest unofficial video series—deep-sea animals that dance better than you 💃 Most sea cucumbers live a sedentary life on the bottom of the ocean, sifting through sediment to find detritus that rains down from above. But some sea cucumbers temporarily leave behind the life of eating and pooping on the seafloor to go for a swim. They may do this as a defense behavior or to find a mate. Sea cucumbers have adapted in remarkable ways to master the challenges of living in the deep sea. | MBARI

78.9K viewsJun 28, 2025

No hooks or lines, just a sinker. 😬 ⁠⠀ This deep-sea parachute is actually a discarded larvacean house. Larvaceans build balloon-like structures called “houses,” which concentrate food by filtering tiny particles out of the surrounding seawater. Over time, their filters become overloaded with particles, and the larvacean abandons its house. The cast-off larvacean house eventually deflates like a punctured balloon and sinks rapidly toward the seafloor, carrying large amounts of detritus as well

42K viewsDec 4, 2024

Unwind with the breathtaking beauty of deep-sea hydrothermal vents 🔥〰️ Some of the most stunning landscapes on Earth lie deep beneath the ocean’s surface. Volcanic activity on the seafloor creates scattered oases known as hydrothermal vents. These underwater geysers spew superheated water rich in dissolved minerals. When that scalding-hot water comes in contact with frigid deep-ocean water, the minerals crystallize, raining tiny flecks of “ash” to the seafloor. Those mineral deposits build up o

12.2K viewsJul 30, 2024

Just another tiny deep-sea bestie 🥰⁠ ⁠ From icy polar zones to the darkest ocean depths, these miniature wonders can thrive in habitats where few other animals can survive. Amphipods are crustaceans often mistaken for tiny shrimp. They resemble shrimp in some ways, but they are laterally compressed and have no carapace.⁠ ⁠ Despite their diminutive size—most species grow no bigger than your fingernail—amphipods power ocean food webs in a big way by serving as prey for countless species of fishes

7.7K views10 months ago

Bone Devourers: The Deep-Sea Worms That Eat Whale Bones — Long Reel

YouTubedaryl huff

This Fish Looks Through Its Own Transparent Head ⚡

YouTubeIs It For Real?

Deep-sea mom life. 🦑🥚 For decades, marine biologists assumed that all squids laid their eggs in clusters on the seafloor, where the eggs developed and hatched without any help from their parents. However, MBARI scientists discovered that some female deep-sea squid, like this Gonatus onyx, brood their eggs by carrying them between their arms until the young hatch and swim away. ⁠ ⁠ Gonatus females will have approximately 2,000 to 3,000 eggs in a sheath between their arms for as long as nine mon

87.1K viewsMay 12, 2024

Meet one of our favorite deep-sea cuties. The giant cusk-eel (Spectrunculus grandis) is one of the largest bony fishes in the deep abyss. Sometimes called “swimming noses,” these fish rely on their large olfactory organs to sniff out their next meal. They are not picky eaters—a hungry Spectrunculus will dine on a variety of bottom-dwelling invertebrates like crustaceans, worms, and sea stars or just as happily nibble on decomposing carcasses. In the deep sea, food can seem scarce unless you know

15.4K viewsSep 3, 2024

Scientists Never Saw This Octopus Mother Eat in 4.5 Years

YouTubeOcean Experiments

Why Deep Sea Monsters Actually Look Like Aliens (It’s Not What You Think)

YouTubeDeepVerse

11 km Down: The Strangest Animals on Earth Live Here

YouTubeThink in Process

Deep beneath the ocean’s surface, this homebody holds tight to the rocky seafloor. While most other sea cucumbers meander across the seafloor, the armored sea cucumber (Psolus squamatus) is a sedentary species. A flat underside acts like a suction cup, gripping the bottom and rarely letting go. Psolus cannot outrun predators. Instead, tough, hardened scales cover their body, serving as protective armor. A low profile and muted color help too—with their tentacles tucked in, Psolus looks like a ro

3.3K viewsApr 9, 2025

We heart gulper eels ♥️🫶♥️⁠ ⁠ Gulper eels are deep-sea fish that live throughout the world’s ocean from a few hundred meters to over 2,000 meters (over 6,500 feet) in the deep midwater.⁠ ⁠ See that massive mouth? Food is scarce in the deep sea, so a gulper eel’s oversized mouth helps it swallow any morsel of food—big or small—that it comes across. Scientists think the glowing tip of this eel’s sinewy body might act as a luminescent lure to attract unsuspecting prey and then—gulp—it becomes dinn

13.6K viewsFeb 14, 2025

Deep-sea swim-by 😶‍🌫️ Rattails, or macrourids, are common throughout the world’s ocean. They are characterized by a distinctive large head and whip-like tail that tapers to a point. Big blue eyes give the rattail an edge at finding food in deep dark waters. Their keen eyesight reveals prey, like fishes and squid, darting just above the seafloor. There are over 1,000 species of rattails found worldwide, although MBARI has recorded less than 20 species during our numerous expeditions. Macrourid

3.4K viewsOct 17, 2024

Deep-sea pals 🌊 Cameras on MBARI’s remotely operated vehicles (ROVs) have recorded thousands of hours of video helping our research team piece together the mysteries of Earth’s largest, but least explored, living space. Now, a collaboration between MBARI and DeepSea Power & Light has provided the tools to capture ultra high-definition resolution 4K video thousands of meters below the ocean’s surface. The deep-sea friends you see here are the grooved tanner crab, Chionoecetes tanneri, with black

2.4K viewsNov 5, 2024

In November 2014, MBARI recorded what we believe was the first ever video footage of the black seadevil alive and at depth. Deep-sea anglerfishes are elusive animals that are rarely observed in their natural habitat. This little angler, about 9 centimeters (3.5 inches) long, is named Melanocetus johnsonii. MBARI's ROV Doc Ricketts observed this anglerfish at 600 meters (1,969 feet) in the deep dark waters of the Monterey Canyon. Anglerfishes have evolved a remarkable way to catch prey—a fishing

154.3K viewsFeb 12, 2025

There is nothing quite like an octopus in the deep. 🐙⁠ ⁠ Although we often see these deep-sea octopods, we know little about many of the species that belong to the Bathypolypodinae subfamily. We typically find the species within this group walking along or swimming just above the seafloor, hunting for snails, crabs, and other small animals. | MBARI

44.8K viewsJun 29, 2025

10 minutes of fascinating deep-sea animals | Into The Deep

5.3M viewsFeb 10, 2022

YouTubeMBARI (Monterey Bay Aquarium Research Institute)

The Deep Ocean Isn't Dark. We Just Never Looked.

YouTubeWorld Untangled

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