Related by context. Frequent words. (Click for all words.) 64 blowhole 59 hollow tubes 58 digestive juices 55 pectoral fins 54 dorsal fins 53 secretions 53 tiny pores 53 pharynx 53 planktonic 53 steam vents 52 moray eels 52 mouthparts 52 exhalations 52 Sperm whales 51 exhalation 51 airstream 51 orifices 51 bronchi 50 inlet 50 nostrils 50 manta rays 50 funnel shaped 50 copepods 50 lava tubes 49 migrating whales 49 nasal secretions 49 excretions 49 mandibles 49 sinus cavities 49 inlets 49 kelp beds 49 tidal pools 49 droplets 49 tubules 49 seabeds 48 seawater 48 tiny droplets 48 snorkellers 48 waterholes 48 gill 48 soundlessly 48 filter feeders 47 nasal passages 47 carbonic acid 47 rooster tails 47 toothed whales 47 chloride ions 47 baleen 47 intertidal 47 water vapor 47 fins 47 cough sneeze 47 seawaters 47 anuses 47 gobies 47 ridges 47 mucous 46 fiord 46 gurgle 46 capillaries 46 bronchial tubes 46 snorkels 46 hammerheads 46 intertidal zone 46 beaver ponds 46 mucus 46 sacs 46 sting rays 46 rocky outcrops 46 spray nozzles 46 dorsal fin 46 rooster tail 46 vents 46 flagella 46 infectious prions 46 exhaust pipes 46 inhalations 46 lungs 46 airflows 46 venturi 46 saltwater 46 vortices 46 rocky coastline 45 limpets 45 intake valves 45 snorkel 45 undulate 45 sensory organs 45 digestive tracts 45 combustion chambers 45 fishies 45 volcanic vents 45 streambeds 45 entrained 45 nasal passage 45 roseate spoonbills 45 ocean 45 reef sharks 45 sweat glands 45 air sacs 45 hiss