Related by context. Frequent words. (Click for all words.) 57 Inbreeding 57 Mule Deer 56 predation 56 habitat fragmentation 56 snowshoe hares 55 Overpopulation 55 elk moose 55 Salamanders 54 Mule deer 53 Populations 53 Toxoplasmosis 53 Migratory 53 Poaching 52 wolf predation 52 Mating 52 Bighorn sheep 52 Reintroduction 52 Diseased 52 Greater Yellowstone Ecosystem 52 Salinity 52 Spawning 52 Susceptibility 51 Foraging 51 amphipods 51 Baiting 51 red legged frogs 51 Invasive Plants 51 overhunting 51 Contaminant 51 Antibiotic Resistance 51 overharvest 51 Whooping Crane 50 Extinct 50 Parasitic 50 Domesticated 50 habitat degradation 50 Endangered 50 Promiscuity 50 Imperiled 50 Infestations 50 Carnivorous 50 aquatic habitats 50 Endemic 50 Economic Impacts 50 Marine Mammals 50 Overfishing 50 Neuronal 49 Invasive species 49 Cyanobacteria 49 Sage grouse 49 Neutering 49 Feral hogs 49 Repellents 49 Cannibalism 49 amphibian populations 49 Biogeography 49 Trapping 49 murrelet 49 Biologically 48 Drug Resistant 48 Plasticity 48 Spaying 48 ungulates 48 habituation 48 grassland habitat 48 snowshoe hare 48 Pollination 48 Invasive plants 48 Prostate Cancer Risk 48 fox squirrels 48 Urbanization 48 Mammalian 48 Species 48 reproduce asexually 48 Fertilization 48 snowy plovers 48 Healthy Diet 48 aquatic invertebrates 48 Acidity 47 species 47 insect populations 47 moose elk 47 Hormonal 47 Outdoors notebook 47 Yellowstone ecosystem 47 Variability 47 Droppings 47 Mexican spotted owl 47 frogs toads 47 grassland birds 47 Mutated 47 Great Horned Owl 47 Endangered List 47 Nutria 47 tailed deer 47 Animal Behaviour 47 habitat 47 nutrient loading 47 Brain Cells 47 stoneflies 47 Behavior