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Virginia Hayssen earned her Ph.D. from Cornell University.
Pleiotropy of the agouti coat-color locus: examination of the multiple effects a single genetic locus, in this case a gene which influences coat color, can have on the biology of the animal.
Evolution of Reproduction across Mammals: examination of how litter size, gestation length, neonatal length, lactation length are influenced by the physical characteristics of an animal as well as by its ancestry and its habitat and diet.
Women in Science: examination of gender differences in career trajectories of individual who teach or have taught at Smith College. Divisional patterns, departmental differences and changes over time also alter the length of time men and women have occupied particular ranks at the college.
Hayssen, V. 2008. "Reproductive effort in squirrels: ecological, phylogenetic, allometric, and latitudinal patterns," Journal of Mammalogy 89(3): 582-606.
Hayssen, V. 2008. "Reproduction within marmotine ground-squirrels (Sciuridae, Xerinae, Marmotini): patterns among genera." Journal of Mammalogy 89(3): 607–16.
Hayssen, V. 2008. "Patterns of body and tail length and body mass in Sciuridae," Journal of Mammalogy 89(4):852–73.
Hayssen, V. 2008. "Bradypus pygmaeus." Mammalian Species 812: 1–4.
Haas, S. K., V. Hayssen and P. R. Krausman. 2005. "Panthera leo." Mammalian Species 762: 1–11.
Gardner, A.L., and V. Hayssen. 2004. "A guide to constructing and understanding synonymies for Mammalian Species." Mammalian Species 739: 1–17.
Hayssen, V., J. M. Harper, and R. DeFina. 2002. "Fecal corticosteroids in agouti and nonagouti deer mice (Peromyscus maniculatus). Comparative Biochemistry and Physiology, Part A. Molecular and Integrative Physiology 132: 439–46.
Hayssen, V. 2001. "Body and organ mass in agouti and nonagouti in deer mice (Peromyscus maniculatus)." Comparative Biochemistry and Physiology 130A: 311–21.
Lapseritis, J. M., and V. Hayssen. 2001. "Thyroxine levels in agouti and nonagouti deermice (Peromyscus maniculatus)." Comparative Biochemistry and Physiology 130A: 295–99.
Hayssen, V. 1999. "Chisel-toothed kangaroo rat/Dipodomys microps." pp. 534–35 in The Smithsonian Book of North American Mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp.
Goodwin, N., V. Hayssen, D. W. Deakin, and A. P. F. Flint. 1999. "Influence of social status on ovarian function in farmed red deer (Cervus elaphus)." Physiology and Behavior 65: 691–96.
Hayssen, V. 1998. "Effect of transatlantic transport on reproduction of agouti and nonagouti deer mice, Peromyscus maniculatus." Laboratory Animals. 32: 55–64.
Hayssen, V. 1997. "Effects of the nonagouti coat-color allele on behavior of deer mice (Peromyscus maniculatus): A comparison with Norway rats (Rattus norvegicus)." Journal of Comparative Psychology 111: 419–23.
Jabbour, H., V. Hayssen, and M. Bruford. 1997. "Conservation of deer: Contributions from molecular biology, evolutionary ecology, and reproductive physiology." Journal of Zoology 243: 461–84.
Kunz, T., C. Wemmer, and V. Hayssen. 1996. "Assessment of sex, age, and reproductive condition in mammals." pp. 279–90, in Measuring and monitoring biological diversity: Standard methods for mammals. D. E. Wilson, F. R. Cole, J. D. Nichols, R. Rudran and M. S. Foster, eds. Smithsonian Institution Press, Washington, DC, 409 pp.
Hayssen V., and T. H. Kunz. 1996. "Allometry of litter mass in bats: Comparisons with maternal size, wing morphology, and phylogeny." Journal of Mammalogy. 77(2): 476–90.
Hayssen, V. 1995. "Milk: It does a baby good." Natural History Magazine. 104(12): 36.