Related by context. Frequent words. (Click for all words.) 60 yellow legged frogs 60 conifer forests 58 temperate forests 58 coniferous forests 57 larches 56 overwinters 56 leopard frogs 56 wolves roam 55 fir forests 55 red cedars 55 subalpine 55 lowland gorillas 55 sparsely vegetated 54 montane 54 migrating northward 54 chestnut blight 54 Barn owls 54 aurochs 54 temperate zones 54 ponderosa pine forests 54 sequoias 54 scrub oaks 54 deciduous forests 54 Snow leopards 53 tiger subspecies 53 shrublands 53 occidentalis 53 Altai Mountains 53 pine oak 53 Homo antecessor 53 Sea otters 53 grassy plains 53 tamarack 53 spruce budworm 52 merlins 52 Trumpeter swans 52 Middle Awash 52 madrone 52 hickories 52 coniferous forest 52 longleaf pine forests 52 oak pine 52 coastal redwoods 52 Spider mites 52 yellow legged frog 52 evergreen forests 52 giant sequoia 51 native cutthroat trout 51 staghorn 51 sea scorpion 51 sweetgum 51 Purple loosestrife 51 Ponderosa pines 51 alder trees 51 Gypsy moths 51 oaks maples 51 westslope cutthroat trout 51 ichthyosaurs 51 homo erectus 51 horned dinosaur 51 canadensis 51 piñon 51 lodgepole pine trees 51 kipunji 51 elk calves 51 pinon juniper 51 overwintered 51 bur oak 51 Fin whales 51 teosinte 51 tulip poplars 51 Fertile Crescent 51 woody shrubs 51 pygmy rabbits 50 temperate rainforest 50 temperate regions 50 Diplodocus 50 Paleo Indians 50 white crowned sparrows 50 freshwater fishes 50 oak hickory 50 catalpa 50 scrublands 50 aspen stands 50 bryozoans 50 Greater Yellowstone Ecosystem 50 Purple martins 50 plains bison 50 horned dinosaurs 50 refugia 50 hickory trees 50 americanus 50 ponderosa pine forest 50 aspen trees 50 saltbush 50 springtails 50 spotted salamanders 50 Paranthropus 50 saber tooth tigers 50 staghorn coral 50 invertebrate animals