Putto best-known are the sculptor Donatello and the painter Raphael. The two relaxed and curious putti who appear at the foot of Raphael's Sistine Madonna are often reproduced. They also experienced a major revival in the 19th century, where they gamboled through paintings by French academic painters, from Gustave Doré’s illustrations for "Orlando Furioso" to advertisements. The iconography of putti is deliberately unfixed, so that it is difficult to tell the difference between putti, cupids, and various forms of angels. They have no unique, immediately identifiable attributes, so that putti may have many meanings and roles in the context of art.
Plural form of words ending in -us all fields, found "octopods", "octopi", and "octopodes" all stayed the same, but "octopuses" increased to 1054 papers. Indicating "octopuses" is the most preferred in the scientific record, whereas "octopodes" is never used. "Fowler's Modern English Usage" states that "the only acceptable plural in English is "octopuses,"" and that "octopi" is misconceived and "octopodes" pedantic. The term "octopod" (plural "octopods" or "octopodes") is taken from the taxonomic order Octopoda but has no classical equivalent. The collective form "octopus" is usually reserved for animals consumed for food. The situation with the word "platypus" is similar to that of "octopus"; the word is