犬屬的馴養物種，是狼的後裔，而在某些分類法中被視為亞種。狗依不同外型與體型，有超過400個不同的品種，所有馴養或野生的狗都是起源於狼或灰狼。此物種已與人類同住超過一萬兩千年，其角色為狩獵的伙伴、保護者與作為牧者以及綿羊、山羊、牛的守衛。現今，狗被用來協助盲人與殘障者或警方的勤務。在西方藝術中，狗通常象徵忠貞與忠誠，然而在其他文化中，他們也是許多特性的象徵，像是不潔、引誘等。

狗(種)　(P,,U,繁體中文-偏好,D,U,U)
家犬(,U,繁體中文-非偏好,UF,U,U)
犬(,U,繁體中文-非偏好,UF,U,U)
犬種(,U,繁體中文-非偏好,UF,U,U)
kou(P,,U,韋氏拼音-偏好,UF,U,U)
gǒu (P,,U,漢語拼音-偏好,UF,U,U)
gou (P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
Canis familiaris(species)　(P,,U,英文-偏好,D,U,N)
Canis familiaris(species)　(P,,U,拉丁語-偏好,D,U,N)
dogs(animals)　(,U,英文-非偏好,AD,U,N)
dog(animal)　(,U,英文-非偏好,AD,U,N)

藝術與建築詞典根目錄
....代理者層面
........活體有機體
............真核生物 (域)
................動物界 (界)
....................脊索動物門 (門)
........................脊椎動物亞門 (亞門)
............................哺乳綱 (綱)
................................食肉目 (目)
....................................犬科 (科)
........................................犬屬 (屬)
............................................狗 (種)

descendant of....

灰狼(種)

英文....

Domesticated species of Canis, descended from Canis lupus and considered a subspecies in some classifications. Dogs come in a variety of shapes, and sizes and over 400 distinct breeds. All domestic or feral dogs are descended from Canis lupis or gray wolf. For more than 12,000 years, it has lived with humans as a hunting companion, protector, and as herders and guardians of sheep, goats, and cattle. Today, dogs are employed as aids to the blind and disabled, or for police work. In Western art, dogs have generally come to symbolize faithfulness and loyalty, however, in other cultures they can symbolizes a varity of traits, ranging from unclean to seducer.

狗(種)............	[AS-Academia Sinica]
.................	故宮後設資料需求規格書 3
.................	大英百科全書線上繁體中文版 September 11, 2012
家犬............	[AS-Academia Sinica]
.................	國家教育研究院－雙語詞彙、學術名詞暨辭書資訊網 September 11, 2012
犬............	[AS-Academia Sinica]
.................	故宮後設資料需求規格書 20
Canis familiaris(species)............	[VP]
.................	Animal Diversity Web (1995-)
.................	National Museum of Natural History, Taxonomy database (2000-) "Painted Wolves of Zululand," accessed 17 May 2006
.................	Encyclopedia Britannica Online (2002-) "dog," accessed 15 May 2006
dogs(animals)............	[VP]
.................	Getty Vocabulary Program rules
.................	LC Subject Authority Headings [online] (2002-) sh 85038796;" dogs," accessed 15 May 2006
.................	BHA Subject Headings (1985-) dogs
dog(animal)............	[VP]
.................	Getty Vocabulary Program rules
Subject:............	[VP]
.................	Animal Diversity Web (1995-) "Canis lupus familiaris," accessed 15 May 2006
.................	Encyclopedia Britannica Online (2002-) "dog," accessed 15 May 2006

Getty AAT: 300250130 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300250130
聯合目錄： 狗 、家犬 、犬 、犬種 、kou 、gǒu 、gou 、Canis familiaris 、dogs 、dog 、Canis familiaris