Open Domain

Illustration of <n>Periphylla mirabilis</n> by <n>Ernst Haeckel</n> and <n>A. Giltsch</n> for the <n>Voyage of HMS Challenger</n>.

An untitled 1928 photograph by <n>Karl Blossfeldt</n> from his book <n>Urformen der Kunst</n>.

<n>Histioteuthis bonelliana</n>, a 1851 chromolithograph by <n>Jean Baptiste Vérany</n>. Lithography by <n>Joseph Armanino</n>.

"<n>When She Got to the Middle of the Stream</n>" by <n>Virginia Frances Sterrett</n> for <n>Comtesse de Ségur</n>'s <n>Old French Fairy Tales</n> (1920).

An 1881 illustration of the jellyfish <n>Thamnostylus dinema</n> by artist and biologist <n>Ernst Haeckel</n>.

<n>They were three months passing through the forest</n>, an illustration by <n>Virginia Frances Sterrett</n> for the 1920 book <n>Old French Fairytales</n>.

<n>Great Barrier Reef Corals, Plate V</n>, an 1893 illustration by <n>William Saville-Kent</n>.

<n>Discomedusae</n>, a 1904 lithograph from <n>Kunstformen der Natur</n> by artist <n>Ernst Haeckel</n>.

An <n>Art Nouveau</n> watercolor painting titled <n>Vintage Moon Goddess</n>, circa 1920s.