Related by context. Frequent words. (Click for all words.) 58 polar bears 57 polar bear 54 endangered species 53 walrus 53 sea otters 51 endangered 51 walruses 51 monk seal 51 critically endangered 50 pika 50 critically endangered species 50 Endangered Species List 50 beluga whales 50 Endangered Species Act 49 belugas 49 beluga whale 49 species 49 IUCN Red 48 beluga 48 habitat designation 48 polar bear habitat 48 amphibian species 48 Polar bears 48 sea otter 47 fin whale 47 imperiled species 47 Chukchi 47 marine mammals 47 northern spotted owl 47 endangered whales 47 piping plovers 47 coral species 47 NOAA Fisheries Service 46 gray whales 46 emperor penguins 46 pikas 46 Polar bear 46 Chukchi Sea 45 brown pelican 45 sea lions 45 habitat degradation 45 piping plover 45 mammal 45 habitat 45 sage grouse 44 loggerhead turtles 44 spotted owl 44 NOAA Fisheries 44 bird species 44 plover 44 seabird 44 Bluefin tuna 44 polar bear cub 44 leatherback 43 seabirds 43 shorebird 43 Threatened Species 43 Beaufort seas 43 Beaufort Sea 43 delta smelt 43 baiji 43 National Marine Fisheries 43 mammals 43 bull trout 43 leatherbacks 43 melting Arctic 43 wolverines 43 orcas 43 Mexican gray wolf 43 Sumatran tiger 42 migratory species 42 whales 42 humpback whales 42 hatchlings 42 loggerhead 42 humpbacks 42 Dirk Kempthorne 42 polar bear populations 42 manatee 42 marine mammal 42 burrowing owls 42 Endangered 42 lynx 42 whooping crane 42 endangered sea turtles 42 dugongs 42 minke whale 42 California condor 42 overfishing 42 ocean acidification 42 marine turtles 42 subsistence hunting 41 desert tortoise 41 caribou 41 Marine Mammal Protection 41 scaup 41 Northwestern Hawaiian Islands 41 California condors 41 Wildlife Service 41 Sumatran tigers 41 grizzly bears