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A fish The three-spined stickleback (Gasterosteus aculeatus) on the background of a 5 mm measurement grid. Ichthyology research.
Close-up of an african clawed frog (Xenopus laevis) also known as african clawed toad frog in water.
Related to Giant horned lizard isolated on black background
A tadpole on white, macro shot, isolated
Iguana x-ray with a metabolic bone disease.
Port Jackson Glassfish, (Ambassis jacksoniensis), Narooma, NSW, January 2023
The three-spined stickleback (Gasterosteus aculeatus)
Detailed facial closeup on an adult North american Eastern red backed salamander, Plethodon cinereus on forrest floor
Pacific herring swimming in the aquarium
South Japanese rice fish (Oryzias latipes) in Japan
albino frog
Tadpole, Malabar gliding frog (Rhacophorus malabaricus), India
Channa Orna Fish In Aquarium
Peron's Tree Frog (top) and Green and Golden Bell Frog showing different stages of tadpole development
Diadophis punctatus, commonly known as the ringneck snake or ring-necked snake, is a species of colubrid snake. It is found throughout much of the United States, central Mexico, and south eastern Canada. Santa Rosa, California.
Butterfly Fish, pantodon buchholzi
Fish Close-Up
Photo of Flathead grey mullet, a juvenile saltwater fish, against a black background.
a frog stays cool in a forest near Santa Marta, Colombia
Small brown frog on a green leaf in the rainforest
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Leech or bloodsucker from New Guinea showing from above view
California tiger salamander (Ambystoma californiense) is a vulnerable amphibian native to Northern California.   \
Killifish of south Asia, \
Sea life Gavun ( lat.  Atherina hepsetus ) fish Underwater  Mediterranean sea Scuba diver point of view. OLIGA (ATHERINA BOYERI)
Common Frog, Rana temporaria tadpole with internal gills, 3 weeks after hatching, in front of white background
Orangelined Cardinalfish Taeniamia fucata occurs in the tropical Indo-Pacific from the Persian Gulf to Red Sea and east coast of Africa, eastward to the Marshall Islands, Samoa and Tonga, north to Ryukyu Islands, south to northern Australia in a depth range from 2-60m, max. length 10cm. \nOrangelined Cardinalfish inhabits continental and insular shelves and occurs on coral and rocky reefs in sheltered bays and lagoon, patch reefs, with muddy, sandy and silty bottoms or coral rubble, and mangroves, typically forming dense aggregations at the entrance of caves.\nThe mouthbrooder species is nocturnal and forms distinct pairs during courtship and spawning. \nTriton Bay, Kaimana Regency, West Papua Province, Indonesia, \n3°51'48.0312 S 133°55'48.9612 E at 6m depth by night
little  stickleback on white background
Axolotl
Free Images: "bestof:Xenophrys longipes (1).jpg Xenophrys longipes Xenophrys longipes http //www archive org/stream/proceedingsofgen85zool page/850/mode/2up Proceedings of the"
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