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A Bloom of Moon Jellies
In recent years, blooms of jellyfish, such as these moon jellies (Aurita aurita) in...
Dugongs, along with manatees, make up a group of marine mammals called sirenians or...
Polar Bear on the Ice
Polar bears have evolved to survive in the Arctic with large, oar-like front paws...
Transparent sea jelly
Many jellyfish in the class Hydrozoa, such as this hydromedusa Aglantha digitale,...
Smithsonian squid expert Dr. Clyde Roper collaborated with National Geographic to...