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A harp seal in icy water
Photo

Harp Seal

Harp seals depend on seasonal ice during the breeding season. Their populations may...
A fur seal in kelp
Photo

Fur Seal

Warming climate, changing ocean chemistry, and overfishing threaten kelp forests...
A school of Atlantic bluefin tuna
Photo

Atlantic Bluefin Tuna

Endangered Atlantic bluefin tuna are caught in the wild and fattened in pens for...
A translucent pteropod swims freely in the open ocean with a black background.
Photo

Shelled Pteropod

Changes in ocean chemistry destroy the shelled pteropods that this “naked sea...
Phoenix Islands protected area
Photo

Phoenix Islands

Unlike most coral reefs, those of the Phoenix Islands are protected from pollution...
Dover Sole Skin
Photo

Close-Up of Dover Sole Skin

This close-up of the skin of dover sole (Solea solea) masks its true ability: to...
Beating Cilia of Comb Jelly Combs
Photo

Sea Gooseberry Larva

These beautiful wisps are the hair-like cilia of a sea gooseberry larva, a common...
Tiny sponge spicules.
Photo

Sparkling Sponge Spicules

These sparkling sponge spicules are microscopic needle-like structures that many...
A close-up of tiny teeth on the common whelk's radula.
Photo

A Snail's Rainbow Radula

This abstract image is a close-up of the tiny teeth that cover the radula of a...
Tropical hatchetfish, like the one shown in this X-ray photograph, live in the dark depths of the ocean. Like many other deep-sea fishes, they have large eyes and bioluminescent spots on their bellies.
Photo

X-Ray Image of a Tropical Hatchetfish

Tropical hatchetfish (Argyropelecus lychnus), like the one shown in this X-ray...
In the X-ray image of this Viper Moray Eel (Enchelynassa canina), note the second set of jaws in the “throat”; these are the gill arches, which are present in all fish.
Photo

X-Ray Image of a Viper Moray Eel

In the X-ray image of this Viper Moray Eel (Enchelynassa canina), note the second...
A female manatee and her calf are captured on film foraging in seagrass off the coast of Brazil.
Photo

Female Manatee Foraging with a Calf on Her Back

"Wild manatees in Belize are not used to humans. Living miles offshore in...

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