Related by context. Frequent words. (Click for all words.) 60 gorillas chimpanzees 54 elephants giraffes 54 tigers leopards 52 amphibians reptiles 52 primates 52 rheas 52 Bornean 51 peccary 51 frogs lizards 51 Sumatran rhinoceros 50 lizards snakes 50 elk bison 50 Indohyus 50 lions cheetahs 49 lions leopards 49 komodo dragons 49 bison elk 49 elephants rhinos 49 kipunji 49 apes 49 chimpanzees 48 elephants tigers 48 Artificial insemination 48 tigers elephants 48 capybaras 48 lowland gorillas 48 mandrills 48 waterbuck 48 mammals reptiles 48 nonhuman primate 48 simian immunodeficiency virus 47 Kenya Malawi Mozambique 47 tarsiers 47 orangutans 47 Western lowland gorillas 47 elk mule deer 47 Udoto 47 cervids 47 insects reptiles 47 spotted hyenas 47 faunas 47 Frans de Waal 47 By Laurie Kulikowski 47 snakes frogs 47 elk moose 47 horned dinosaurs 47 pipefish 47 primate species 47 monkeys apes 47 vertebrate animals 47 kinkajous 47 giant tortoise 47 monotremes 47 bisons 46 By Priyanka Dayal 46 squirrels rabbits 46 SIV infection 46 placental mammals 46 mammals 46 sloths 46 cone snails 46 Asiatic lion 46 rabbits squirrels 46 antelopes 46 Sumatran Tiger 46 peccaries 46 elephants lions 46 nonhuman primates 46 banteng 46 Chimpanzees 46 lemurs 46 rabbits guinea pigs 46 snakes lizards 46 insectivores 46 australopithecines 46 coevolution 46 orang utans 46 Grevy zebra 46 elephants camels 46 Bushmeat 46 Darwin finches 45 coyotes foxes 45 clouded leopards 45 ichthyosaurs 45 mitochondrial DNA mtDNA 45 Swaziland Zambia 45 lions elephants 45 simian virus 45 mongooses 45 canids 45 Barn owls 45 platypuses 45 freshwater fishes 45 Ebola outbreaks 45 primate 45 reptiles amphibians 45 bonobos 45 marmosets 44 anteaters 44 birds reptiles amphibians 44 mosasaurs