Carp Leaping Out of Water (right of a pair of Carps) (1777) by Tsukioka Settei. Original public domain image from the… https://www.rawpixel.com/image/7660552/image-art-vintage-public-domainFree Image from public domain license
Haeckel Actiniae (1904) by Ernst Haeckel. Original public domain image from Digital Commonwealth. Digitally enhanced by… https://www.rawpixel.com/image/9414952/image-vintage-illustration-animal-public-domainFree Image from public domain license
Vertebral column and ribcage. Watercolour by J. Mongrédien, ca. 1880. https://www.rawpixel.com/image/13970358/vertebral-column-and-ribcage-watercolour-mongredien-ca-1880Free Image from public domain license
Multiple scaly fish swimming underwater in clear blue water. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282783/free-photo-image-fish-ocean-backgroundFree Image from public domain license
A tidal pool with familiar marine animals. Colour line block after Muchter. https://www.rawpixel.com/image/13952420/tidal-pool-with-familiar-marine-animals-colour-line-block-after-muchterFree Image from public domain license
Snail on woman hand in water. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3285803/free-photo-image-hand-swimming-faceFree Image from public domain license
Belua whale in an aquarium. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/3093659/free-photo-image-whale-animal-america-animalsFree Image from public domain license
The princess and a butterfly underneath a fly agaric, sketch for the painitng farity tale princess, (1895-1896) painted by… https://www.rawpixel.com/image/10103507/image-butterfly-plant-personFree Image from public domain license
An aerial shot of two motorboats speeding on clear water between small tropical islands. Original public domain image from… https://www.rawpixel.com/image/3282477/free-photo-image-beach-ocean-islandFree Image from public domain license
A cat dressed as a woman tapping the head of an octopus (1798–1861), vintage Japanese illustration by Utagawa… https://www.rawpixel.com/image/12230639/image-art-vintage-japaneseFree Image from public domain license
Mollusc shells: classification chart showing 132 varieties, with a diagram below outlining details of the three main shapes.… https://www.rawpixel.com/image/13967037/image-background-pattern-seaFree Image from public domain license
Georgia Aquarium, Atlanta, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282195/free-photo-image-human-marine-life-seaFree Image from public domain license
Two stag beetles crawling over a map of the world underneath a large mandible. Coloured etching by G. Edwards. https://www.rawpixel.com/image/13952503/image-cartoon-person-artFree Image from public domain license
The Sun is Passing the Sign of Pisces (1906), vintage illustration by Mikalojus Konstantinas Čiurlionis. Original public… https://www.rawpixel.com/image/11066637/image-background-art-patternFree Image from public domain license
For displaying jellyfish, The Monterey Bay Aquarium uses a Kreisel tank, which creates a circular flow to support and… https://www.rawpixel.com/image/422003/jellyfish-tankFree Image from public domain license
Pleated fan (1880) pink satin design. Original public domain image from The Smithsonian Institution. Digitally enhanced by… https://www.rawpixel.com/image/10103416/photo-image-pattern-vintage-leafFree Image from public domain license
Jellyfish. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282393/free-photo-image-jellyfish-public-domain-sea-oceanFree Image from public domain license
Taveuni Island. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286876/free-photo-image-whale-sea-public-domain-fishFree Image from public domain license
Greenland: above, indigenous fish including seals; centre, three different whales; below, whale fisher in their attire.… https://www.rawpixel.com/image/13952510/image-cartoon-person-artFree Image from public domain license
Black and white shot of shark swimming underwater with bubbles. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286767/free-photo-image-sea-animal-cc0Free Image from public domain license
Butterfly wing nature macro insects bicolor. Free public domain CC0 photo https://www.rawpixel.com/image/6039969/photo-image-public-domain-nature-butterflyFree Image from public domain license
Two dolphins surfacing, light reflecting sea. Original public domain image from Flickr https://www.rawpixel.com/image/5803723/photo-image-background-public-domain-oceanFree Image from public domain license
The King Penguin is very large compared to other species. It is the second largest of them all. Full grown, they can be up… https://www.rawpixel.com/image/4021278/photo-image-background-bird-natureFree Image from public domain license
Salmon attempting to jump waterfall. Original public domain image from Flickr https://www.rawpixel.com/image/4031136/photo-image-background-food-waterFree Image from public domain license
Kintarō Seizes the Carp (1885) by Tsukioka Yoshitoshi. Original public domain image from the Art Institute of Chicago. … https://www.rawpixel.com/image/7661039/image-art-vintage-public-domainFree Image from public domain license
Unidentified Fish (1737–1770), vintage animal illustration by Luigi Balugani. Original public domain image from Yale… https://www.rawpixel.com/image/12230290/image-art-vintage-illustrationFree Image from public domain license
View in the sea of Sipadan Island, Malaysia. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3343096/free-photo-image-underwater-marine-life-seaFree Image from public domain license
A sperm whale attacks a giant squid. Colour line block after A. Twidle. https://www.rawpixel.com/image/13969015/sperm-whale-attacks-giant-squid-colour-line-block-after-twidleFree Image from public domain license
Underwater shot of sharks swimming at Oslob Whale Shark Watching. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3285875/free-photo-image-underwater-fish-whaleFree Image from public domain license
Greetings from Stuart, Florida, sailfish center of the world (1930–1945) chromolithograph art. Original public domain… https://www.rawpixel.com/image/10184928/image-texture-arts-vintageFree Image from public domain license
One jellyfish in focus swimming amongst blurred jellyfish at L'Aquarium de Paris. Original public domain image from… https://www.rawpixel.com/image/3282826/free-photo-image-fish-sea-parisFree Image from public domain license
Drone view of the red and white lighthouse by the rocky shoreline at Eastbourne. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3282503/free-photo-image-lighthouse-architecture-beaconFree Image from public domain license
Underwater beauty at Raja Ampat, Indonesia. Original public domain image from Flickr https://www.rawpixel.com/image/4031085/photo-image-background-ocean-plantFree Image from public domain license
Hokusai's Carp Swimming by Water Weeds (1831), vintage Japanese fish illustration. Original public domain image from… https://www.rawpixel.com/image/12229711/image-art-vintage-japaneseFree Image from public domain license
Six sea horses in the sea. Colour line block after a painting by H. Murayama. https://www.rawpixel.com/image/13967419/six-sea-horses-the-sea-colour-line-block-after-painting-murayamaFree Image from public domain license
A variety of phosporescent animals under and above water. Colour line block after Dr. Etzold. https://www.rawpixel.com/image/13952492/image-honey-bee-cartoon-personFree Image from public domain license
Humpback whale underwater, Marine mammal. Original public domain image from Flickr https://www.rawpixel.com/image/8752666/photo-image-public-domain-ocean-seaFree Image from public domain license
Bigeye fishes at Rapture Reef Rapture Reef at Northwestern Hawaiian Islands. Original public domain image from Flickr https://www.rawpixel.com/image/4039459/photo-image-background-ocean-blueFree Image from public domain license
A crayfish: two figures, showing the crayfish from above and below. Chromolithograph, 1870. https://www.rawpixel.com/image/13970056/image-cartoon-animal-public-domainFree Image from public domain license
An endangered green sea turtle is released into the Mosquito Lagoon. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441040/green-sea-turtleFree Image from public domain license
White tulips in bouquets wrapped in brown paper. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3284409/free-photo-image-flower-bouquetFree Image from public domain license
A woman abalone diver wrestling with an octopus. Colour woodcut by Yoshitoshi, 1870s. https://www.rawpixel.com/image/13963588/image-dragon-cartoon-personFree Image from public domain license
Yellowtail and Rockfish (1835-1839), Japanese fish illustration by Utagawa Hiroshige. Original public domain image from The… https://www.rawpixel.com/image/9405350/image-art-vintage-illustration-animalFree Image from public domain license
Lobster and Abalone (1880) by Tsukioka Yoshitoshi. Original public domain image from The Minneapolis Institute of Art. … https://www.rawpixel.com/image/7642423/image-art-vintage-public-domainFree Image from public domain license
Fresh clam and mussel boil with lemon and a side of bread. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282337/free-photo-image-seafood-bowl-breadFree Image from public domain license
Carp Ascending a Waterfall (1830) by Keisai Eisen. Original public domain image from The Cleveland Museum of Art. … https://www.rawpixel.com/image/7661309/image-art-vintage-public-domainFree Image from public domain license
Human skeleton with left arm extended: front view. Engraving, ca. 1800. https://www.rawpixel.com/image/13952147/human-skeleton-with-left-arm-extended-front-view-engraving-ca-1800Free Image from public domain license
Aquarium Berlin, Berlin, Germany. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286190/free-photo-image-underwater-sea-backgroundFree Image from public domain license
Red Carp Ascending a Waterfall (1820) by Yashima Gakutei. Original public domain image from The MET Museum. Digitally… https://www.rawpixel.com/image/7660582/image-art-vintage-public-domainFree Image from public domain license
Two women at a wash-basin; to the right is a man with the attributes of an initiate of Dionysus. Gouache painting by S.W.… https://www.rawpixel.com/image/13951185/image-cartoon-face-personFree Image from public domain license
Underwater shot of stringway with sunlight casting shadow on sandy ocean floor. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3286080/free-photo-image-ocean-fish-fishesFree Image from public domain license
Seal in Antarctica. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305499/free-photo-image-seal-sea-turtle-antarcticaFree Image from public domain license
Coral Reef at Dry Tortugas National Park. Original public domain image from Flickr https://www.rawpixel.com/image/4026644/photo-image-ocean-nature-seaFree Image from public domain license
Sydney Opera House at night. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286326/free-photo-image-sydney-city-australiaFree Image from public domain license
Kid with goggles holding up starfish from ocean, location unknown, 24 March 2017. View public domain image source here https://www.rawpixel.com/image/6111373/photo-image-face-public-domain-oceanFree Image from public domain license