860-290694 - A Yacare caiman, Caiman crocodylus yacare, catching a tiger fish, Hoplias malabaricus, catching a fish in the Rio Negrinho. Pantanal, Mato Grosso, Brazil.

860-289891 - Siamese fighting fish (Betta splendens) 'Plakat galaxy' on black background in aquarium

860-289890 - Siamese fighting fish (Betta splendens) 'Half Moon Fancy' on black background in aquarium

860-289892 - Siamese fighting fish (Betta splendens) 'Half Moon Koi' on black background in aquarium

860-289889 - Siamese fighting fish (Betta splendens) 'Half Moon Fancy' on black background in aquarium

860-289888 - Siamese fighting fish (Betta splendens) 'Half Moon Fancy' on black background in aquarium

1350-2444 - Electric eel, Electrophorus electricus; this air-breathing freshwater fish can deliver an electric shock up to 650 volts and naturally occurs in the Amazon river basins of South America including Brazil and Guyanas; photo taken in captivity.

860-288842 - Spectacled caiman (Caiman crocodilus), catching a Piranha out of the water, Pantanal area, Mato Grosso, Brazil

860-288579 - Siamese fighting fish (Betta splendens) 'Half Moon Tri Band' male

860-288565 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288580 - Siamese fighting fish (Betta splendens) 'Double Tail Butterfly' male

860-288569 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288573 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288578 - Siamese fighting fish (Betta splendens) 'Copper Metallic' male

860-288572 - Siamese fighting fish (Betta splendens) 'Half Moon' male

860-288574 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288566 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288583 - Siamese fighting fish (Betta splendens) 'Double Tail Butterfly' male

860-287928 - Discus (Symphysodon aequifasciatus)

860-288576 - Siamese fighting fish (Betta splendens) 'Tri Band' male

860-288567 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288571 - Siamese fighting fish (Betta splendens) 'Half Moon' male

860-288568 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-288577 - Siamese fighting fish (Betta splendens) 'Copper Metallic' male

860-288575 - Siamese fighting fish (Betta splendens) male

860-288581 - Siamese fighting fish (Betta splendens) 'Double Tail Butterfly' male

860-288582 - Siamese fighting fish (Betta splendens) 'Double Tail Butterfly' male

860-288570 - Siamese fighting fish (Betta splendens) male 'Crowntail Dragon'

860-287937 - Ancistrus sp. "temminckii" gold albino

1116-41396 - Cichlids school around an endangered Florida Manatee (Trichechus manatus latirostris) at Three Sisters Spring. The Florida Manatee is a subspecies of the West Indian Manatee, Crystal River, Florida, United States of America

1116-41398 - Endangered Florida Manatee mother and calf (Trichechus manatus latirostris) gather at Three Sisters Spring. The Florida Manatee is a subspecies of the West Indian Manatee, Crystal River, Florida, United States of America

1116-41395 - A split image of four endangered Florida Manatee (Trichechus manatus latirostris) resting on the sandy bottom at Three Sisters Spring. The Florida Manatee is a subspecies of the West Indian Manatee, Crystal River, Florida, United States of America

1116-41397 - Endangered Florida Manatee (Trichechus manatus latirostris) at Three Sisters Spring. The Florida Manatee is a subspecies of the West Indian Manatee, Crystal River, Florida, United States of America

860-286127 - Red-bellied Piranha teeth, Rio Ipixuna Brazil Amazon

860-286128 - Red-bellied Piranha teeth, Rio Ipixuna Brazil Amazon

1116-28956 - Hawaii, Kauai, Menehune Fish Pond.