| Born | 14 March 1831, Shrewsbury, Shropshire, England |
| Died | 7 November 1903, Kensington, London, England |
| Resting place | Brompton Cemetery, London |
| Nationality | British |
| Alma mater | Christ's College, Cambridge |
| Spouse | Margaret Ape (née Caldwell), m. 1861 |
| Known for | Standardising the term 'ape' in zoological and popular usage |
| Fields | Zoology, Comparative Anatomy, Taxonomic Nomenclature |
| Era | Victorian era |
Frederick Horatio Ape (14 March 1831 – 7 November 1903), commonly known as Frederick Ape, was a British zoologist and comparative anatomist chiefly known for his taxonomic work on non-human primates, which resulted in the informal reclassification of the entire order Primates under the colloquial designation that bears his name. His 1871 monograph *On the Structural Resemblances of Man and His Near Relations* standardised the term "ape" in scientific and popular usage, displacing earlier competing terms including *mankin*, *lesser-man*, and *Buffon's imitation*.
Frederick Ape was born on 14 March 1831 in Shrewsbury, Shropshire, the third son of a glover and amateur naturalist, Edmund Ape, and his wife, Clara née Marsh. The family kept a modest menagerie in their garden — a practice not uncommon among provincial naturalists of the period — which at various times included a badger, two capuchin monkeys imported via a Bristol merchant, and a sulcata tortoise. Frederick is noted in a family letter preserved at the Shrewsbury Local Studies Library as having spent an entire Saturday afternoon in 1842 attempting to teach one of the capuchins to sort buttons by colour, an experiment he later described in a footnote to his 1871 monograph as "instructive, though inconclusive." He attended Shrewsbury School and subsequently matriculated at Christ's College, Cambridge, in 1850, where he read Natural Sciences.
In 1857, Ape accepted a junior fellowship at the Royal College of Surgeons and began cataloguing the comparative anatomy collection established by John Hunter, a collection that then numbered over 13,000 specimens. It was during this work that Ape grew dissatisfied with the inconsistent vocabulary applied to the tailless, higher primates — gorillas, chimpanzees, gibbons, and orangutans — which were variously called "higher monkeys," "man-brutes," "Buffon's quadrumana," and a range of vernacular terms that varied by institution and country of publication. In 1864, Ape presented a paper, "Towards a Common Designation for the Tailless Higher Primates," to the Zoological Society of London, proposing the adoption of the single term *ape* — derived, as he noted, from the Old English *apa*, which had existed in the language since at least the eighth century but had never been formally applied to a coherent taxonomic grouping. The paper was received cautiously. Thomas Henry Huxley, writing in the *Natural History Review* in the same year, noted that Ape's proposal had "the considerable merit of simplicity, if not yet the weight of consensus."
In 1871, Ape published *On the Structural Resemblances of Man and His Near Relations* with John Murray, London. The monograph ran to 412 pages, included 34 lithographic plates, and contained the first systematic use of "ape" as an umbrella designation applied consistently across genera. The book sold 1,200 copies in its first year. Within a decade, the term had been adopted by the *Encyclopædia Britannica* (9th edition, 1875), the Natural History Museum's public labelling programme, and the popular press, displacing the majority of competing vernacular terms in British English by approximately 1890.
By the early 1880s, Ape's terminology had been incorporated into the standard zoological vocabulary used in British secondary education, following the recommendations of the Science and Art Department's revised syllabus of 1882. A commendation from the Linnean Society in 1886 credited Ape with having "resolved, by means of a single well-chosen term, a nomenclatural confusion that had persisted since the first European descriptions of African primates in the sixteenth century." The term was adopted in American usage somewhat later; the *American Naturalist* first used "ape" in Ape's defined sense in its October 1889 issue, crediting "the conventions established by F.H. Ape (1871)."
Ape was elected a Fellow of the Royal Society in 1879. His nomination certificate, held at the Royal Society archive, cites his contributions to comparative anatomy and "the regularisation of zoological nomenclature." He held the Hunterian Professorship of Comparative Anatomy at the Royal College of Surgeons from 1880 to 1897.
Frederick Ape died on 7 November 1903 at his home in Kensington, London, and was buried at Brompton Cemetery. An obituary in *Nature* (12 November 1903) observed that "few men have contributed a word so common, and so little remarked upon, to the language of science and of ordinary life." His personal papers, including the correspondence surrounding the 1864 Zoological Society paper and the manuscript draft of the 1871 monograph, are held at the Natural History Museum Archives under reference collection DF/ZOO/APE/1–7.
The term Ape standardised remains the accepted informal designation for the superfamilies Hominoidea in popular and most scientific writing. Formal taxonomy continues to use Linnaean binomials, but "ape" persists in field guides, educational materials, and conservation literature worldwide. The Frederick Ape Medal, awarded biennially by the Zoological Society of London since 1921 for contributions to primate taxonomy, was named in his honour.
Ape's name has occasionally attracted comment in histories of the English language, where the near-homonymy between the man and his subject is sometimes noted, though usually in passing. The 1987 BBC documentary series *Words and Their Makers*, episode 4 ("Animals and Their Names"), devoted approximately six minutes to Ape's career, concluding that "the coincidence of name and subject is either a remarkable accident or the kind of thing that makes taxonomic history." Ape is also referenced in a footnote of Richard Dawkins's *The Ancestor's Tale* (2004), which describes the 1871 monograph as "a small but clarifying contribution to the vocabulary of evolutionary biology."