Related by context. Frequent words. (Click for all words.) 62 amphipods 61 crocodilians 58 insect populations 57 zooxanthellae 57 temperate zones 57 diapause 57 warm blooded 57 mammals 56 vertebrate animals 56 terrestrial ecosystems 55 marine invertebrates 55 forbs 55 species 55 insects spiders 55 plesiosaurs 55 planktonic 55 mycorrhizal fungi 55 thermoregulation 54 temperate regions 54 organisms 54 symbionts 54 gastropods 54 phytoplankton blooms 54 humans 54 flatworms 54 arthropods 54 aquatic invertebrates 53 larval stages 53 metabolisms 53 forcings 53 temperate forests 53 herbivores 53 invertebrates 53 arthropod 53 alkaline soils 53 marine iguanas 53 gut microbiota 53 multicellular organisms 53 methanogens 53 reproduce asexually 53 circadian clocks 53 macroinvertebrates 53 nitrogen fixation 52 vertebrates 52 Saturated fats 52 Dust mites 52 snowshoe hares 52 placental mammals 52 diatoms 52 hydrologic cycle 52 pollinating insects 52 coniferous forests 52 creatures 52 gut microbes 52 herbivorous 52 montane 52 fruiting bodies 52 slime molds 51 chytrid 51 insects 51 photosynthesize 51 Scientists theorize 51 Salamanders 51 diatom 51 respiration 51 mycobacteria 51 stomata 51 marine reptiles 51 amphibians 51 moth larvae 51 pest insects 51 aquatic insects 51 lizards 51 rotifers 51 stinkbugs 51 foraminifera 51 toothed whales 51 sexual dimorphism 51 diurnal 51 microflora 51 subtropical climate 51 brine shrimp 51 single celled organisms 50 copepods 50 leafhoppers 50 bobwhites 50 lizards snakes 50 fungi 50 echidnas 50 desiccation 50 organism 50 Archaea 50 nocturnal animals 50 unicellular 50 zooplankton 50 damselflies 50 humid climates 50 arid climates 50 metabolic processes 50 acidic soils 50 Cyanobacteria