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Mosasaurus fossil, huge ocean lizard, extinct Mosasaur between 70 and 66 million years ago.
Fossilised Fish
Superbe banc de raies aigles ou raies léopard,  photographiés dans le lagon de moorea en Polynésie française
Channa maculata swimming in fish tank. An omnivorous fish that lives in the Mekong Delta is used to feed farmers during floods
A Styxosaurus Plesiosaurus predator hunts Hybodont sharks during the Cretaceous Period.
Close up art movement of Betta fish Siamese fighting fish isolated on black background.Fine art design concept.
Manta ray surrounded by school of fish with beams of sunlight shining into frame. Shot in North Western Australia.
Computer generated 3D illustration with the prehistoric shark Edestus
Superior lobe Posterior 3d medical
Knightia alta is an extinct genus of fish well-known from abundant fossils found in the Green River Formation of Wyoming, United States. They rarely exceeded 10 cm in length and are found throughout the formation. Knightia alta, Eocene Epoch, Green River Shale. Fossil.
Dinosaur fossils on sand stone background- detail.
Underwater image of Nurse shark in the blue ocean of Bimini, The Bahamas
Three Eogyrinus amphibians search together for fish prey during the Carboniferous Period of England.
Aquarium tropical fish: otocinclus
An elasmosaurus swims away from you in shallow seas.  This long necked plesiosaur was an aquatic reptile that lived in the ocean during the Cretaceous period. 3D Rendering
Fossils of marine life.Ammonite fossils
Catfish isolated on white background. Clipping path inside.
The Arctic grayling (Thymallus arcticus) is a species of freshwater fish in the salmon family Salmonidae. T. arcticus is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Missouri River drainage in Montana.  Wyoming.
Prehistoric fish fossil impint in stone isolated on a white background
Manta ray swimming over coral reef in clear blue ocean
A group of Pilot whales try to evade a Dakosaurus marine reptile in Cretaceous seas of North America.
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
The reedfish, ropefish (more commonly used in the United States), or snakefish, Erpetoichthys calabaricus, is a species of fish in the family Polypteridae alongside the bichirs. It is the only member of the genus Erpetoichthys. It is native to fresh and brackish waters in West and Central Africa. The reedfish possesses a pair of lungs in addition to gills, allowing it to survive in very oxygen-poor water. It is threatened by habitat loss through palm oil plantations, other agriculture, deforestation, and urban development
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
underwater  photo
MRI scanning of the human body skeletal, muscular and nervous systems with abdomen region view. / You can see the animation movie of this image from my iStock video portfolio. Video number:
Xenacanthus from the Triassic era 3D illustration
albino frog
Plesiosaurus marine reptile dinosaurs swim together in Jurassic Seas to find their next prey.
Manta Rays Swimming together at Maldives reef cleaning station
Free Images: "bestof:Crossopterygii fins tetrapod legs.svg en Comparison between the fins of A Crossopterygiin fishes and the legs of B tetrapods Bones which correspond to each"
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