Related by context. Frequent words. (Click for all words.) 51 sage grouse 50 polar bears 50 wolverines 49 spotted owl 48 lynx 48 endangered species 47 wolverine 47 northern spotted owl 47 species 46 salamander 45 amphibians 45 polar bear 45 grizzly bears 45 prairie dog 45 delta smelt 44 California condor 44 bull trout 44 subspecies 44 gray wolf 44 gray wolves 43 Endangered Species Act 43 mammal 43 salamanders 43 sea otter 43 sea otters 43 endangered 43 FWS 42 habitat 42 wolf 42 walruses 41 bird species 41 vernal pools 41 Polar bears 41 critically endangered 41 mammals 40 cutthroat trout 40 bighorn sheep 40 mammal species 40 pronghorn 40 frogs 40 jaguars 40 Endangered 40 glaciers 39 grizzlies 39 caribou 39 mountain lions 39 wolves 39 antelope 39 giant panda 39 extinction 39 grizzly bear 39 walrus 38 bumblebee 38 frog 38 ivory billed woodpecker 38 breeding pairs 38 tortoises 38 otters 38 habitat designation 38 polar ice 38 condor 38 toad 38 chipmunk 38 wolf populations 37 jaguar 37 mule deer 37 amphibian 37 melting glaciers 37 extinctions 37 habitats 37 condors 37 cetaceans 37 carnivore 37 WildEarth Guardians 37 tortoise 37 bald eagles 37 gray whales 37 Antarctic ice 36 bark beetles 36 genetically distinct 36 mountain lion 36 wild salmon 36 biodiversity 36 otter 36 sagebrush 36 Wildlife Service 36 fauna 36 boreal forest 36 humpbacks 36 aquatic species 36 marsupials 35 elk herd 35 koalas 35 hemlocks 35 lizard 35 bald eagle 35 biologists 35 owls 35 vole 35 coho salmon 35 bumblebees