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An illustration depicting a cycle of life in a lake during the Devonian Period (419 to 358 million years ago). The Eurypterids (Sea Scorpions) feed on the smaller Trilobites dwelling on the lake bottom while the enormous placoderm fish Dunkleosteus, in turn, feeds on them.
Pacific herring swimming in the aquarium
Collection of freshwater fishes isoleted on white background
Hand drawn brown trout fish isolated on white background.
latimeria fish isolated on the black background
View from above of a trout suspended in a stream.  Small stream in Sequoia National Park, California.
New Zealand Longfin Eel (Anguilla dieffenbachii) on the banks of a river in summer.
Weather loach (Misgurnus fossilis) on the background of a 5 mm measurement grid. Ichthyology research.
Pacific halibut swims in the aquarium
3d illustration of a dunklosteus chasing two eusthenopteron
The Atlantic wolffish (Anarhichas lupus), also known as the seawolf, Atlantic catfish, ocean catfish, devil fish, wolf eel (the common name for its Pacific relative), or sea cat, is a marine fish, the largest of the wolffish family Anarhichadidae.
Gaidropsarus mediterraneus  close up view. Black Sea.
Fossilised Fish
Dunkleosteus from the Devonian era 3D illustration
Vernal pool tadpole shrimp or Tadpole Shrimp, Lepidurus parkardi, Jepson Prairie Preserve, California, found in Vernal Pools
Doryaspis is an extinct primitive jawless fish that lived in the seas of the early Devonian Period.
Red tailed catfish
Small fish in hand
A remora fish in the marine protected area of Aliwal Shoal on the east coast of South Africa.
monter fish from the deep ocean isolated on the black background
A fish The three-spined stickleback (Gasterosteus aculeatus) on the background of a 5 mm measurement grid. Ichthyology research.
The cabezon (Scorpaenichthys marmoratus) is a large species of sculpin native to the Pacific coast of North America. California Coast. Cottidae, Actinopterygii; Scorpaeniformes.
very ancient fossil fish on the stone and you can also see the bones
Channa Orna Fish In Aquarium
Turbot, scophthalmus maximus, Adult swimming
Scanned film photo. Dust and scratches on photo.
Zebra loach catfish Botia striata aquarium fish
Canary rockfish, Sebastes pinniger, is a rockfish of the Pacific coast, aquarium, Seward, Alaska
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