Related by context. Frequent words. (Click for all words.) 63 Beluga whales 58 marine iguanas 58 polar bears 56 Belugas 56 Snow leopards 55 Extinctions 55 Polar bears 55 Adelie penguins 55 Fin whales 55 americanus 55 eiders 55 seals sea lions 55 dunlin 55 blue footed boobies 55 harlequin ducks 54 emperor penguin 54 endangered mammal 54 giant tortoise 54 saber toothed tigers 54 Sea otters 54 nesting colony 54 Yangtze River dolphin 53 polar bear 53 penguin colonies 53 Grevy zebra 53 plesiosaurs 53 Barn owls 53 polar bear cubs 53 Albatrosses 53 Arctic foxes 53 tigers leopards 53 mammal 53 fulmars 53 seabird populations 53 petrels 52 narwhal 52 Walruses 52 Polar bear 52 Harp seals 52 golden plover 52 Hawaiian monk seals 52 leatherback turtle 52 dolphins whales 52 voracious predators 52 Irrawaddy dolphin 52 goshawks 52 Pacific walrus 52 Amur leopard 52 Great Horned Owl 52 frogs salamanders 52 murrelet 52 Emperor penguin 52 Emperor penguins 52 murres 51 frogs toads 51 emperor penguins 51 Lemurs 51 Magellanic penguins 51 Whale sharks 51 hawksbill turtles 51 peccary 51 Salamanders 51 cassowary 51 Arctic terns 51 Sperm whales 51 arctic fox 51 damselfish 51 guillemots 51 toothed whales 50 clouded leopards 50 shearwater 50 majestic creatures 50 overhunting 50 Bornean 50 orca whales 50 walruses 50 apex predator 50 Bottlenose dolphins 50 narwhals 50 Pterosaurs 50 Coral reef 50 elkhorn 50 penguins 50 harbor porpoises 50 echidnas 50 moray eels 50 Iberian lynx 50 aye aye 50 penguin species 49 Amur tiger 49 pinniped 49 Sumatran orangutan 49 endemic species 49 pipefish 49 koala bears 49 reptiles amphibians 49 creatures 49 crocodilian 49 elk bison 49 Humpback whale 49 Leatherbacks