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AQR0029.JPG AQR0029. Amazon red-tail catfish (Phractocephalus hemiliopterus), whiskers sense electric fields of prey at greater range than it can see (can only see closer than one inch away); Steinhart Aquarium; San Francisco
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AQR0030.JPG AQR0030. piranha, Serrasalmus rhombeus, schools are known to attack man and large animals, Amazon
AUS0002.JPG AUS0002. Napoleon or humphead wrasse; Cheilinus undulatus; six feet long; Great Barrier Reef; Australia
AUS0007.JPG AUS0007. harlequin tuskfish Choerodon spp.; a wrasse with typical large teeth; Great Barrier Reef; Australia
AUS0009.JPG AUS0009. coral trout Cephalopholis miniata; being cleaned by a cleaner wrasse Labroides dimidiatus; Great Barrier Reef; Australia
AUS0013.JPG AUS0013. harlequin tuskfish; Choerodon spp.; a wrasse with typical large teeth; Great Barrier Reef; Australia
AUS0091.JPG AUS0091. giant grouper or potato cod (Epinephelus tukula), yellow pilotfish beneath it, Great Barrier Reef; Australia
AUS0092.JPG AUS0092. parrotfish sleeps at night in protective mucous cocoon, Great Barrier Reef; Australia
BJA0002.JPG BJA0002. BEHAVIOR: porcupinefish Diodon hystrix can blow up to resemble spiked pincushion in defense; Sea of Cortez, Baja Mexico
BJA0003.JPG BJA3. supermale rainbow wrasse Thalassoma lucasanum; changes sex; Sea of Cortez, Baja Mexico
BJA0004.JPG BJA0004. guineafowl puffer (Arothron meleagris); swells up as defense; Sea of Cortez, Baja Mexico
BJA0005.JPG BJA0005. sergeant majors Abudefduf troschelii change color when mating; lay eggs in male’s nest; Sea of Cortez, Baja Mexico
BJA0006.JPG BJA0006. giant jawfish Opistognathus punctatus; male broods eggs in mouth; makes home in burrow in sand; Sea of Cortez, Baja Mexico
BJA0008.JPG BJA0008. (SMT10) longnosed hawkfish Oxycirrhites typus in sea fan; Sea of Cortez; Sea of Cortez, Baja Mexico
BJA0014.JPG BJA0014. BEHAVIOR: sergeant major male Abudefduf troschelii guards nest of purple eggs; Sea of Cortez, Baja Mexico
BJA0017.JPG BJA0017. (SMT8) SYMBIOSIS: cleaner goby on green moray eel Gymnothorax castaneus; Sea of Cortez, Baja Mexico