Related by context. Frequent words. (Click for all words.) 61 mating rituals 52 reproductive biology 49 mating 49 Mammals 48 dung beetles 48 mating ritual 48 lizards 47 zoologists 47 narwhal 47 migratory patterns 46 frogs 46 Lemurs 46 nocturnal animals 45 Biology Letters 45 evolutionary biologists 45 nocturnal creatures 45 ornithology 44 petrels 44 David Attenborough 44 mammal 44 ecology 44 cichlids 44 species 44 zoologist 44 amphibians 44 arthropod 44 emperor penguins 43 penguins 43 evolutionary biologist 43 evolutionary biology 43 flightless birds 43 platypus 43 monkeys 43 sloths 43 cowbirds 43 Mating 43 mammals 43 leatherback turtles 43 avian species 42 bonobos 42 journal Biology Letters 42 Natural History 42 lemurs 42 flightless 42 apes 42 copulation 42 habitats 42 lemur 42 primatologist 42 Evolutionary Biology 42 interspecies 42 clouded leopard 42 sea creatures 42 horseshoe crabs 42 zoological 42 foraging 42 spider monkeys 42 amphibian 42 anthropological 42 hornbills 42 mockingbirds 41 larval stage 41 tapirs 41 aquatic insects 41 Fruit flies 41 creatures 41 zoology professor 41 fruit fly Drosophila 41 chimps 41 octopuses 41 fiddler crabs 41 damselflies 41 lungfish 41 skinks 41 taxonomic 41 penguin 41 vertebrate species 41 lizard 41 gibbon 41 zoology 41 baboons 41 habitat 40 Ornithologists 40 meerkats 40 sea slugs 40 dugongs 40 chimpanzees 40 dragonflies 40 anthropomorphism 40 fruit flies 40 rhesus monkeys 40 biologists 40 insects 40 Zoology 40 ungulates 40 herpetology 40 comparative genomics 40 frog 40 hermaphrodites 40 bonobo 40 copulate