Today's Catch

Crown of Thorns Starfish in the Marianas Islands

Crown of Thorns Starfish

A crown-of-thorns starfish ( Acanthaster planci ) on a reef in the Marianas Islands. An “outbreak” of these coral-eating starfish can decimate a reef, and they have done great damage on Australia's Great Barrier Reef.
An adult giant squid battles its only known predator - a sperm whale.

Battle with a Sperm Whale

An adult giant squid struggles for survival in an encounter with a sperm whale - its only known predator. The whale will probably overpower and eat the squid. More about the giant squid can be found in our Giant Squid section .
Hawaiian Monk Seal

Hawaiian Monk Seal

The critically endangered Hawaiian monk seal ( Monachus schauinslandi ) is one of hundreds of marine species that can be found cruising the waters of Papahānaumokuākea, a chain of islands northwest of the main Hawaiian archipelago. Despite living in...
Photograph of a red "jellyfish" with many fine tentacles surrounding the bell and floating against a black background.

Red Jellyfish

Sea jellies such as this one in the genus Benthocodon are commonly seen on or near the seafloor in the Monterey Canyon off central California. Some jellies in this genus feed on animals that live in seafloor sediment. Learn more about life in the...
A photo of a solitary European green crab on a sandy substrate.

European Green Crab (Carcinus maenas)

The European green crab ( Carcinus maenas ) has spread far beyond its native continent, to waters off North and South America, Asia and Australia. It's a voracious eater and poses a nuisance to shellfish farmers. Invasive species have various means...
An unidentified moray eel held in researcher's hands.

A Baby Moray Eel, or a Really Small Adult?

This is an unidentified moray eel , collected from 650 feet off the coast of Curacao. Morays are very secretive animals that tend to stay hidden in caves and crevices. Researchers with the Deep Reef Observation Project (DROP) don't yet know if this...

Cuttlefish in Seagrass Bed

Squids, octopuses and cuttlefish, such as this Australian Giant Cuttlefish ( Sepia apama ), compose just one group of animals that call seagrass beds home. Clams and worms bury themselves in the mud or sandy ground. Anemones, sponges, algae and...

Octopus Shows Off Its Siphon

This common octopus ( Octopus vulgaris ) doesn't have a jetpack to help him zoom through the water, but he's got something pretty close: a siphon that shoots water. (It's the little orange/yellow cup in the picture.) Octopuses pull water into their...
North Atlantic right whales were long hunted for their baleen—the fringed plates hanging in their mouths that they use to strain the seawater for food. Baleen was used in a number of consumer products, such as corsets.

Whale Baleen from a Dead Whale

Whalers hunted right whales for their blubber, which could be turned into oil to burn in lamps or make soap, and their baleen. Baleen is the series of fringed plates hanging in their mouths that they use to strain the seawater for food. Baleen was...
he pineapplefish has glowing organs that can be used to find prey at night.

I Found the Pineapple!

Is that fruit swimming in the ocean? Well it may look like fruit, but it's actually a pineapplefish ( Cleidopus gloriamaris ). Like the hard outer part of a pineapple, this fish also has an outer shell made of pineapple-like yellow scales. But that...

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