Invertebrates

Animals without backbones make up a huge percentage of the ocean’s biodiversity. They aren’t just small (like pteropods) or squishy (like jellyfish); the giant squid and corals that build huge reefs are also invertebrates.

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Seaside Lichens

Horizontal bands of color represent different species of lichen that have...
Chrysaora melanaster is a jellyfish found in the Arctic.

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Jellyfish and Comb Jellies

Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are...

Clyde Roper: Squid Hunter - Eyeball to Eyeball

Dr. Clyde Roper, squid expert, explains how he developed a passionate interest in the giant squid ( Architeuthis dux) in this excerpt of "Eyeball to Eyeball," an episode of Errol Morris' First Person television...

Clyde Roper: Squid Hunter - Architeuthis

Dr. Clyde Roper recounts the tale of his encounter with a giant squid specimen ( Architeuthis dux) that was found washed up on a Massachusetts beach in this excerpt from "Eyeball to Eyeball," an...
Caribbean boulder star coral (Montastrea cavernosa)

Star of the Reef: One Species at a Time

Each month, the Naked Oceans podcast invites a leading marine researcher to pick the "critter of the month" by asking: if you were a marine organism, which one would you be? This month, Dr...
A piece of the Hyperbolic Crochet Coral Reef exhibit.

When Art Meets Science: The Hyberbolic Crochet Coral Reef

The stunning Smithsonian Community Reef—an accompaniment to the main Hyperbolic Crochet Coral Reef exhibit created by local crafters. Credit: Rebecca Bray/Smithsonian Institution The “Hyperbolic Crochet Coral Reef,” a unique exhibition and thought-provoking fusion of...
This aptly named fish has two long fangs.

Creepy Critters: Marine Life Surfaces for Halloween

Claws, spines, spikes, tentacles, and fangs. Aliens, monsters, and ghostly apparitions glowing in the night. Marine life forms have some of the best looks for Halloween—no costumes needed. From freaky fish lurking beneath the...
Overfishing is leading to an abundance of less desirable species like jellyfish.

Peanut Butter and Jellyfish

With more desirable species being fished out and jellyfish blooming, will jellyfish sandwiches soon be on the menu? Credit: David Beck / Jennifer Jacquet All over the world, people have been witnessing gigantic blooms...

ROV Video of Stunning Creatures

Using an ROV (Remotely-Operated Vehicle) equipped with a high-definition video camera, scientists can observe the life that flourishes beneath the Arctic ice . On this expedition, they discovered creatures, like this Narcomedusa jelly ,...

Medicines from the Sea

You may not think of the ocean as a pharmacy but scientists are developing exciting new medicines from the sponges, corals, and other marine organisms found in the sea. Explore other videos that capture...

Submarine Volcanoes and Hydrothermal Vents

Recent scientific discoveries have revealed an underwater community of marine animals and other organisms that thrive in the dark depths of the ocean near hydrothermal vents and undersea volcanoes. This ocean ecosystem is dependent...
red paper lantern jellyfish

Red Paper Lantern Jellyfish: One Species at a Time

The Encyclopedia of Life brings us a new installment of the podcast, One Species at a Time . Vacuumed up from its habitat a mile down in the ocean, the red paper lantern jelly...

Diversity of Deep-Sea Corals

Sample the surprising diversity of deep-sea corals. See some of the ways they differ in color, shape, and size. Explore more in the multimedia feature " Coral Gardens of the Deep Sea ."
This species of bamboo coral, discovered in 2004 in the Pacific Northwest, has unusually long and impressive tentacles.

Newly Discovered Deep-Sea Corals

It's a new age of discovery for scientists studying deep-sea corals. In this image gallery, take a look at a handful of the many species of deep-sea corals that have been discovered by marine...
Boats docked in a Chesapeake Bay harbor

Rapa Whelks: Invaders of the Chesapeake Bay

Shellfish from the Chesapeake Bay are prized by seafood lovers. But the Bay's ecosystem and shellfish are threatened by human disturbances, including the introduction of non-native species. Credit: Mary Hollinger/NOAA During the summer of...
Elysia chlorotica, the photosynthesizing sea slug.

Sea Slugs: One Species at a Time

Come one, come all! See the amazing, the astonishing, half-animal, half-plant! Journey to Tampa Bay, Florida, where scientist Skip Pierce and one of his students first made a remarkable discovery twenty years ago. Meet...
Two scientists peer out into the ocean from inside the Curasub, a 5-person submersible

Diving for Crabs in the Deep Sea

In this video, Smithsonian research zoologist Dr. Martha Nizinski takes viewers with her as she searches for crustaceans in the deep sea . This work is part of the Deep Reefs Observation Project (DROP),...

Blue Water Diving with WHOI

"Inside the Open Ocean: Blue Water Diving" produced by Woods Hole Oceanographic Institution (WHOI) , describes a specialized diving technique that lets biologists study the ocean's most fragile beings--soft, transparent animals such as jellyfish...

Corals in the Juan de Fuca Canyon and the Davidson Seamount

Discover some amazing corals in this footage that shows and identifies a range of deep-sea coral species from the Juan de Fuca Canyon off the Olympic coast and the Davidson Seamount, an underwater volcano...

Coral Scientist Brendan Roark: On an Urgent Mission

Dr. Brendan Roark discusses different methods of sampling deep-sea corals with undergraduate students at Texas A&M University. Credit: James LaCombe Deep-sea coral beds are true biodiversity hotspots. It’s urgent that we study these extreme...

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