Skip to the content
Author

Joel Asaph Allen

Joel Asaph Allen (July 19, 1838 – August 29, 1921) was an American zoologist, mammalogist, and ornithologist. He became the first president of the American Ornithologists' Union, the first curator of birds and mammals at the American Museum of Natural History, and the first head of that museum's Department of Ornithology. He is remembered for Allen's rule, which states that the bodies of endotherms (warm-blooded animals) vary in shape with climate, having increased surface area in hot climates to lose heat, and minimized surface area in cold climates, to conserve heat.

Also recorded as J. A. Allen · Joel A. Allen · Joel Allen

Joel Asaph Allen

Portrait of Joel Asaph Allen (1838-1921)

Autobiographical notes and a bibliography of the scientific publications of Joel Asaph Allen Autobiographical notes and a bibliography of the scientific publications of Joel Asaph Allen, 1916 · Public domain

Name
Joel Asaph Allen
Born
19 July 1838
Birthplace
Springfield, Massachusetts
Died
29 August 1921
Known for
Allen's rule
Education
Harvard University
Nationality
United States
Occupation
curator · zoologist · ornithologist · writer · explorer · naturalist · mammalogist · botanical collector
Fields
zoology · ornithology
Languages
English

VALÉORINE Encyclopedia

VALÉORINE documentary reading

Documentary summary

Joel Asaph Allen (July 19, 1838 – August 29, 1921) was an American zoologist, mammalogist, and ornithologist. He became the first president of the American Ornithologists' Union, the first curator of birds and mammals at the American Museum of Natural History, and the first head of that museum's Department of Ornithology. He is remembered for Allen's rule, which states that the bodies of endotherms (warm-blooded animals) vary in shape with climate, having increased surface area in hot climates to lose heat, and minimized surface area in cold climates, to conserve heat.

Admitted source layer · organised and presented by VALÉORINE

Reference Check

Propose documentary evidence for Joel Asaph Allen. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.

Sign in to contribute

World of VALÉORINE

Documentary connections

Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.

Documentary evidence

Documentary basis

Authority files

wikidata · Q502994 · wikipedia · Joel Asaph Allen

In this article

  1. 01Biography
  2. 02Archives and collections
  3. 03Notes, references and evidence

The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 15 August 2026.

Elsewhere in Books

For owners

Own a work by Joel Asaph Allen?

A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.