Journal article
Why don't male mammals lactate?
Abstract
Why has male lactation never evolved? This question is discussed with attention to (a) the physiological and ontogenetic modifications that such an evolutionary development would require, and (b) the reproductive strategies of monogamous mammals and the costs and benefits of extant forms of parental investment. Functional male lactation would require changes in sexually differentiated ontogenetic processes at both prepubertal and circumpubertal …
Authors
Daly M
Journal
Journal of Theoretical Biology, Vol. 78, No. 3, pp. 325–345
Publisher
Elsevier
Publication Date
June 1979
DOI
10.1016/0022-5193(79)90334-5
ISSN
0022-5193