Chin

The chin or the mental region is the area of the face below the lower lip and including the mandibular prominence. It tends to be smaller and more rounded in human females, while bigger and more square in human males. It is formed by the lower front of the mandible. In humans there is a wide variety of chin structures, e.g. cleft chin.

In human evolution, the chin is a cladistic apomorphy, partially defining anatomically modern humans as distinct from archaic forms. Non-human anthropoid apes have a simian shelf for example. Elephants are the only other animals considered to display such a feature, although this leads to debate over the use of the term.

The chin emerged during the Middle and Late Pleistocene, but its origin and biomechanical significance are the subjects of controversy. Prominent hypotheses include buttressing the jaw against stresses resulting from speech or chewing as well as simple sexual selection through mate choice. With the advent of more advanced computational facilities, finite element analyses have been used to support hypotheses involving mechanical stress. On the other hand, increased availability of data regarding sexual dimorphism in chins has also lent support to the sexual selection hypothesis as sexual dimorphism is more difficult to explain under other regimes. It is possible that multiple causal factors have played a role in the chin's evolution.

Chen (surname)

Chen ([ʈʂʰə̌n]) or Chan (simplified Chinese: ; traditional Chinese: ; pinyin: Chén; Wade–Giles: Ch'en) is one of the most common Han Chinese and Korean family names. It ranks as the 5th most common surname in China, as of 2007 and the most common surname in Singapore (2000) and Taiwan (2010). Chen is also the most common family name in Guangdong, Zhejiang, Fujian, Hong Kong (spelt Chan in Hong Kong and Macau). It is the most common surname in Xiamen, the ancestral hometown of many overseas Hoklo. Besides 陳/陈, an uncommon Chinese surname / is also romanized as Chen.

It is usually romanised as Chan in Cantonese, most widely used by those from Hong Kong, and sometimes as Chun. The surname Chen is also used in Hong Kong Cantonese, but not as often. The spelling, Chan, is widely used in Macao and Malaysia. In Min (including dialects of Chaoshan (Teochew), Hainan, Fujian, and Taiwan), the name is pronounced Tan. In Hakka and Taishanese, the name is spelled Gin. Some other Romanisations include Zen (from Wu), Ding and Chern. Chen can be variously spelt Tan, Chan or Chin in Singapore, Malaysia, Philippines and other Southeast Asian countries.

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Latest News for: chin

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Lee Chin’s 16-point haul helps 14-man Wexford see off Antrim

The Irish Times 19 Apr 2025
Second-half goals from veteran Kevin Foley and Cian Byrne and a 16-point haul from Lee Chin set Wexford up for a comfortable 11-point victory that many felt would be beyond them after Jack O’Connor ...
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Pet illustrator Lili Chin aims to capture dogs in whimsical drawings

Decatur Daily 19 Apr 2025
Illustrator Lili Chin became fascinated with dog behavior in 2008 after her Boston terrier, Boogie, bit their landlord and they almost got evicted ... .
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Chin draws 'Dogs of the World'

Dispatch Argus 18 Apr 2025
This combination of photos shows author/illustrator Lili Chin with her Boston Terrier Boogie, left, and cover art for "Dogs of the World. A Gallery of Pups from Purebreds to Mutts," by Lili Chin ... .
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The Mini Crossword: Thursday, April 17, 2025

New Yorker 17 Apr 2025
Jane Austen’s Woodhouse or Gustave Flaubert’s Bovary. four letters ... .
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BoA says she “doesnt know how much longer I’ll be able to keep performing”

NME 17 Apr 2025
READ MORE. Mark – ‘The Firstfruit’ review. NCT’s splintered backbone paints himself whole ... .
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Disney+ announce new K-drama ‘Nine Puzzles’, starring Kim Da-mi and Son Seok-koo

NME 17 Apr 2025
Disney+ has announced the upcoming premiere of a new crime thriller K-drama series titled Nine Puzzles, set to star Itaewon Class’ Kim Da-mi and Big Bet’s Son Seok-koo. READ MORE. ‘Hyper Knife’ review. satiate your morbid curiosity ... .
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Seoul court upholds ADOR’s injunction against NewJeans, band appeals to high court

NME 17 Apr 2025
A Seoul court has ruled in favour of ADOR to uphold its injunction against NewJeans (aka NJZ) and the group’s ability to carry out independent activities. READ MORE. NewJeans vs HYBE. a comprehensive timeline of events ... .
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Oil rises a second day after US cracks down on Iranian supply

Moneyweb 17 Apr 2025
Brent for June settlement rose�0.7%�to $66.30�a barrel at 10.15 a.m. in London ... .
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Lee Chin primed for another Wexford summer after wintering well in Australia

The Irish Times 16 Apr 2025
Lee Chin is not saying every ageing intercounty hurler should try to spend three months in Australia over the winter, if at all possible. All Chin is saying is that it didn’t do him any harm.
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Disgraced healer Sonny Chin admits another sex assault

Otago Daily Times 16 Apr 2025
Sonny Chin outside Dunedin court. Photo. Gerard O'Brien. A disgraced Dunedin healer, currently on parole for sex offences against seven women, has admitted another indecent assault ... .
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