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Science 29 March 1968:
Vol. 159. no. 3822, pp. 1478 - 1479
DOI: 10.1126/science.159.3822.1478
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Articles

Snake Food Preference: Innate Intraspecific Geographic Variation

Michael W. Dix 1

1 Department of Biology, Yale University, New Haven, Connecticut 06520

Compared to Florida individuals, a smaller percentage of Massachusetts Thamnophis sirtalis sirtalis will accept fish. Both experienced adults and isolated newborn snakes respond similarly; the behavior is innate and correlated with habitat differences between the two localities. Although food preference in Natrix sipedon is also innate, geographic variation is not as clearcut.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Polymorphism and Geographic Variation in the Feeding Behavior of the Garter Snake Thamnophis elegans.
S. J. ARNOLD (1977)
Science 197, 676-678
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Science. ISSN 0036-8075 (print), 1095-9203 (online)