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

Celebrating Marine Moms

 The ocean is home to many moms of all shapes and sizes: from charismatic polar...
Wed, 04/24/2013 - 17:29
Screenshot from video "Connecting Coral Reefs" showing illustrations of an underwater coral community.
video

Connecting Coral Reefs

 Coral reefs are some of the most endangered ecosystems on the planet that are home...
Wed, 11/15/2017 - 09:37
Two thorny seahorses sit back to back underwater.
Photo

Seahorse Lovebirds

 Most wild seahorses (here the thorny seahorse Hippocampus histrix) are...
A male short-snouted seahorse with a pouch full of eggs.
Photo

A Pregnant Seahorse

 Instead of females, male seahorses carry the developing seahorse embryos in a...
This close-up view of salps, which have aggregated together into a long chain, have brilliant red guts from eating red plankton.
Photo

Close-up View of Salps

 This close-up view of salps, which have aggregated together into a long chain, have...
A bamboo shark grows in a thick egg case. Even within the egg case, the embryonic sharks can sense predators nearby and, in response, stop all gill movement and hold still to slip under the radar.
Photo

Shark Embryo

 Sharks have young in three different ways. After internal fertilization, some...