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Female rats wiggle their ears when they are in heat, to excite male rats and encourage them to mate. [4] Ear wiggling was a shtick in Hal Roach comedies such as Laurel and Hardy and Our Gang. To achieve this effect, performers such as Stan Laurel would have their ears pulled by threads which would not be visible in the film. [5]
The muscles connected to the ears of a human do not develop enough to have the same mobility allowed to monkeys. Arrows show the vestigial structure called Darwin's tubercle . In the context of human evolution , vestigiality involves those traits occurring in humans that have lost all or most of their original function through evolution .
A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant or animal taxon , and is distinct from the term endangered or threatened .
There is a birth defect of the ear that is visible and relatively common around the world. It is called preauricular sinus which, according to the U.S. National Institutes of Health, or NIH ...
Discovering an insect inside a person's ear is rare but not unheard of, doctors in the U.S. say. Most ear, nose and throat specialists see "tens, if not more, of bugs or some sort of arthropod" in ...
Scan of Figure 2, from Darwin's Descent of Man, second edition, illustrating Darwin's tubercle. This atavistic feature is so called because its description was first published by Charles Darwin in the opening pages of The Descent of Man, and Selection in Relation to Sex, as evidence of a vestigial feature indicating common ancestry among primates which have pointy ears.
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Pointy ears or pointed ears are a characteristic of many animals, a genetic condition in humans, as well as a cliché in popular culture, particularly in the fantasy genre. They are commonly known as elf ears for their depiction in Peter Jackson 's Lord of the Rings film series .