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Lop rabbit or lop-eared rabbit refers to any
rabbit Rabbits, also known as bunnies or bunny rabbits, are small mammals in the family Leporidae (which also contains the hares) of the order Lagomorpha (which also contains the pikas). ''Oryctolagus cuniculus'' includes the European rabbit sp ...
with ears that droop, as opposed to being carried erect. A number of rabbit breeds (listed below) are characterized by such lop ears. Abnormalities in the skull of a half-lop rabbit were studied by Charles Darwin in 1868.


Ear carriage

The defining feature of the lop rabbit is its ear carriage. Unlike the erect ear of the majority of
domestic rabbit A domestic or domesticated rabbit (''Oryctolagus cuniculus domesticus'')—more commonly known as a pet rabbit, bunny, bun, or bunny rabbit—is a subspecies of European rabbit, a member of the lagomorph family. A male rabbit is known as a ''bu ...
breeds, lop breeds have ears loosely drooping, with the opening of the ear facing the skull. Due to the slightly-raised cartilaginous ear base, the head of many lop rabbits (with the exception of English Lops) has a small bulge, referred to as the ''crown''. The head of a typical lop rabbit is said to resemble that of a male sheep in profile, thus the German term for a lop rabbit ''(Widder,'' meaning ''Aries
he ram He or HE may refer to: Language * He (pronoun), an English pronoun * He (kana), the romanization of the Japanese kana へ * He (letter), the fifth letter of many Semitic alphabets * He (Cyrillic), a letter of the Cyrillic script called ''He'' in ...
'', the French term ''(bélier,'' meaning ''ram'') and the Italian term (''ariete'', from Latin ''aries''). A rabbit's ear, with its blood vessels close to the surface, is an essential thermoregulator, since rabbits cannot sweat. The additional weight of a longer or thicker ear is not always fully supported by the rest of the ear structure, resulting in ears that droop. The ears of some young lop rabbits may not achieve their full adult droop until the ear growth is finished. The ears of a lop rabbit prevent them hearing predators and maintaining a healthy body temperature. Both of these disadvantages keep them from surviving outdoor conditions.


Ear type

Rabbits are known to carry their ears in one of five ways: * ''Erect ears'' (the most common): Both ears are carried upright. Such ears may at times rest atop the rabbit's back, or be temporarily smoothed down by the rabbit when it bathes or grooms itself. * ''Full lop ears'' (less common): Both ears hang fully down, brushing the rabbit's cheeks and shoulders. Such ears may gently undulate as the rabbit hops. * ''Half lop ears'' (uncommon): One ear is carried in a full (or nearly-full) droop, while the other ear is carried erect. Similar in appearance, a now-extinct one-eared rabbit—said to resemble a unicorn—was breeding true around the end of the 18th century, and in 1958 two such healthy specimens were photographed. * ''Oar lop ears'' (uncommon): Both ears are carried roughly horizontal to the ground and out over the rabbit's shoulders. The term comes from the resemblance to a boat's oars at rest. In modern times, these are sometimes referred to as ''helicopter ears''. * ''Horn lop ears'' (rare): Both ears are carried roughly horizontal to the ground and out over the rabbit's nose. The term comes from the resemblance to the forward-facing horns of some cows. File:Rabbit - No lop Erect ears Upright ears - 1862 London Journal of Horticulture 1024x597.jpg, Erect ears.
Illustration by . Whimper? ca. 1862 File:Lepus cuniculus - 1875 - Print - Iconographia Zoologica - Special Collections University of Amsterdam - UBA01 IZ20600245.tif, Full lop ears
Unknown artist, 1875 File:Rabbit - Half Lop Half-Lop Lop-Eared Lop Eared - 1862 London Journal of Horticulture 1024x600.jpg, Half lop ears
Illustration by E. Whimper, ca. 1862 File:Rabbit - Oar Lop Oar-Lop Lop-Eared Lop Eared - 1862 - London Journal of Horticulture 1024x601.jpg, Oar lop ears
Illustration by E. Whimper, ca. 1862 File:Rabbit - Horn Lop Horn-Lop Lop-Eared Lop Eared - 1862 - London Journal of Horticulture 1024x609.jpg, Horn lop ears
Illustration by E. Whimper, ca.1862


Ear length

Longer (or thicker) ears are more likely to droop. Some lop-eared rabbits have been deliberately bred for exaggerated ear length. As this can be considered detrimental to the rabbit's health, requirements in Germany "ban rabbits with ears over , and in Holland, is as long as they can be allowed
n shows N, or n, is the fourteenth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''en'' (pronounced ), plural ''ens''. History ...
before disqualification." The ''
Guinness World Records ''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a reference book published annually, listing world ...
'' award for "Longest ears on a rabbit" was given in 2003 to an English Lop in the United States with ears measuring .


Breeds of lop-eared rabbit

Though the majority of rabbit breeds have erect ears, lop-eared breeds make up approximately 15% of all the breeds currently recognized by the
American Rabbit Breeders Association The American Rabbit Breeders Association (ARBA) is a national Club (organization), club for domestic rabbit and cavy breeders. The ARBA is headquartered in Knox, Pennsylvania in the United States. Its membership is composed of rabbit and cavy bree ...
(ARBA) or the British Rabbit Council (BRC)., Such lop-eared breeds include: *
American Fuzzy Lop The American Fuzzy Lop is a rabbit breed recognized by the American Rabbit Breeders Association (ARBA). It is similar in appearance to a Holland Lop. However, the American Fuzzy Lop is a wool breed and will have wool similar to the Angora rabbit, A ...
*
Cashmere Lop The Cashmere Lop rabbit is a medium-sized rabbit with long dense fur. There is also a Miniature Cashmere Lop. The Cashmere lop was recognised as being different from the Dwarf Lop by the British Rabbit Council in the 1980s. This breed, which origin ...
* Canadian Plush Lop * Dwarf Lop * English Lop *
French Lop The French Lop is a breed of domestic rabbit developed in France in the 19th century from the selective breeding of English Lop and Flemish Giant stock. The French Lop resembles the English Lop, but the French Lop is heavier in stature and doe ...
* German Lop * Holland Lop S*
Meissner Lop The Meissner Lop is a breed of domestic rabbit recognised by the British Rabbit Council (BRC). It is similar to, but more slender than, the French Lop. The BRC currently designates the Meissner Lop as a member of its "Rare Varieties Club". See a ...
*
Mini Lion Lop The Miniature Lion Lop is a breed of domestic rabbit recognised by the British Rabbit Council. The breed is not currently recognized by the American Rabbit Breeders Association. In addition to its lop ears, the distinguishing feature of this bree ...
* Mini Lop S* Miniature Cashmere Lop * Miniature Lop K/NL* Velveteen Lop


See also

*
List of rabbit breeds As of 2017, there were at least 305 breeds of domestic rabbit in 70 countries around the world. A rabbit breed is a distinct variety created through selective breeding (or occasionally natural selection) for specific characteristics, including si ...


References

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