Related by context. Frequent words. (Click for all words.) 60 temperate forests 59 species 58 biodiversity hotspot 57 subtropical regions 57 intertidal 57 lowland forests 57 terrestrial ecosystems 56 biodiversity hotspots 56 landmasses 56 temperate regions 56 amphibian populations 56 petrels 55 biome 55 avian species 55 Galápagos 55 mammals 55 marine invertebrates 55 taxa 54 temperate zones 54 tropics 54 biota 54 megafauna 54 ecosystems 53 mammal 53 seagrasses 53 skink 53 Polar Regions 53 Galapagos islands 53 habitats 53 freshwater ecosystems 53 coastal ecosystems 53 toothed whales 53 seamount 52 hydrothermal vent 52 leatherback turtles 52 migratory species 52 cassowary 52 tropical rainforest 52 coral reef ecosystems 52 planktonic 52 coral species 52 Coral Reefs 52 crocodilians 51 leatherbacks 51 petrel 51 volcanic islands 51 river deltas 51 biodiverse 51 Weddell Sea 51 genetically distinct 51 Irrawaddy dolphins 51 breeding colonies 51 coral reefs 51 Galápagos Islands 51 chytrid fungus 51 fauna 50 bird species 50 Cerrado 50 leatherback turtle 50 rainforest 50 biomes 50 subtropics 50 reefs 50 wetland habitats 50 wintering grounds 50 cetaceans 50 ecologies 50 subspecies 50 dugongs 50 tropical forests 50 genetic diversity 50 mammal species 50 tropical rainforests 50 aquatic habitats 50 breeding colony 50 seagrass beds 50 savanna 49 Amazon basin 49 Chihuahuan Desert 49 archipelagos 49 ptarmigan 49 Rainforests 49 herbivores 49 genetic variability 49 marine ecosystems 49 marine ecosystem 49 biogeography 49 aquatic ecosystems 49 El Niños 49 wetland habitat 49 taxon 49 nitrogen fixation 49 coral reef 49 alga 49 vertebrate species 49 diatom 49 frogs toads 49 mammalian species 49 oceans 49 tropical forest 49 marine reptiles