Related by context. Frequent words. (Click for all words.) 58 Gunnison sage grouse 53 species extinctions 53 yellow legged frog 53 federally endangered species 52 greater sage grouse 51 biodiversity hotspot 51 white tailed prairie 51 Sage grouse 51 marbled murrelet 51 pine marten 51 Wyoming pocket gopher 51 biodiversity hotspots 51 bears mountain lions 50 Preble mouse 50 yellow legged frogs 50 species 50 marten 50 chytrid 49 northern spotted owls 49 murrelet 49 overhunting 49 refugia 49 marbled murrelets 49 pygmy rabbits 49 Yellowstone ecosystem 49 mussel species 49 amphibian species 49 Steller eiders 48 By TRISTAN SCOTT 48 pikas 48 Pacific walrus 48 wolves roam 48 worsening droughts 48 Yellowstone cutthroat trout 48 Mule deer 48 By VINCE DEVLIN 48 glacial retreat 48 coyotes foxes 48 amphibian populations 48 giant Palouse earthworm 48 Bighorn sheep 48 red shouldered hawks 48 grassland birds 47 Melting glaciers 47 Natural Heritage SNH 47 Biological Conservation 47 woodland caribou 47 lowland forests 47 Mexican spotted owl 47 melting glacier 47 montane 47 shrikes 47 Warming temperatures 47 elk moose 47 snowshoe hares 47 mountain pine beetles 47 whitebark pine 47 wetter winters 47 By MICHAEL JAMISON 46 upland birds 46 Endangered Species Act 46 coniferous forests 46 Sea otters 46 greenhouse warming 46 wolverine 46 COSEWIC 46 Greater Yellowstone Ecosystem 46 Preble meadow jumping 46 Cook Inlet belugas 46 wolverines 46 grayling 46 winterkill 46 endangered species 46 overharvested 46 grizzly bears 46 Donald Molloy 46 nesting bald eagles 46 ringed seals 46 gadwall 46 trumpeter swans 46 ozone depletion 46 Sumatran elephants 46 conifer forests 46 glacial melt 46 stonefly 45 Steller sea lions 45 receding glaciers 45 ribbon seals 45 Forest Guardians 45 ocean acidity 45 wolf predation 45 aspen trees 45 moose elk 45 timber rattlesnake 45 warmer winters 45 severe droughts 45 drier summers 45 critically endangered 45 mottled duck 45 cutthroat trout 45 hooded mergansers