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Chrysaora melanaster is a jellyfish found in the Arctic.
Overview

Jellyfish and Comb Jellies

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Screenshot from video "Connecting Coral Reefs" showing illustrations of an underwater coral community.
Video

Connecting Coral Reefs

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A screenshot from the video showing illustration of penguins on ice.
Video

Penguins: Popularity, Peril and Poop

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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
Slideshow

Celebrating Marine Moms

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A Pontoh pygmy seahorse
Slideshow

10 Things You Never Knew About Seahorses

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Midway Atoll, where these photos were taken, is more than 2,000 miles from the nearest land.
Slideshow

Laysan Albatrosses’ Plastic Problem

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White abalone
Photo

White Abalone In Danger

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A dusky jawfish protects its eggs by holding them in his mouth.
Photo

A Dusky Jawfish Protecting Its Brood

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The small larvae of elkhorn coral (Acropora palmata) settle and grow on the crustose coralline algae species Hydrolithon boergesenii.
Photo

Coral Larvae Settling

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Every year, at the same place and time, thousands of female Kemp's ridley sea turtles come ashore to nest and lay their eggs on the beach. This mass nesting event is known as an arribada, meaning “arrival by sea” in Spanish.
Photo

Kemp's Ridley Nesting "Arribada"

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Magellanic penguins on the beach in Punta Tombo, Argentina
Photo

Punta Tombo Penguins

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Even when a lobster is still a developing egg, you can see some of its adult features: an eye and legs.
Photo

Lobster Egg

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