Hayssen, V. 2009. Hayssen, V. 2009. Bradypus tridactylus (Pilosa: Bradypodidae). Mammalian Species. 839:1-9. PDF of article (444kb)

Hayssen, V. 2009. Bradypus torquatus (Pilosa: Bradypodidae). Mammalian Species. 829:1-5. PDF of article (1607kb)

Hayssen, V. 2008. Bradypus pygmaeus (Pilosa: Bradypodidae). Mammalian Species. 812:1-4. PDF of article (974kb)

Hayssen, V. 2008. Patterns of body and tail length and body mass in Sciuridae, Journal of Mammalogy 89(4):852-873. PDF of article (322kb)

Hayssen, V. 2008. Reproductive effort in squirrels: ecological, phylogenetic, allometric, and latitudinal patterns, Journal of Mammalogy 89(3):582-606. PDF of article (791kb)

Hayssen, V. 2008. Reproduction within marmotine ground-squirrels (Sciuridae, Xerinae, Marmotini): patterns among genera. Journal of Mammalogy 89(3):607-616. PDF of article (214kb)

Hayssen, V. 1999. Chisel-toothed kangaroo rat / Dipodomys microps. Pp. 534-535 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., Hayssen, V., Deakin, D.W., and Flint, A.P.F. 1999. Influence of social status on ovarian function in farmed red deer (Cervus elaphus). Physiology and Behavior. 65:691-696.

Jabbour, H., Hayssen, V., and Bruford, M. 1997. Conservation of deer: Contributions from molecular biology, evolutionary ecology, and reproductive physiology. Journal of Zoology. 243:461-484.

Kunz, T., Wemmer, C., and Hayssen, V. 1996. Assessment of sex, age, and reproductive condition in mammals. pp 279-290, in Measuring and monitoring biological diversity: Standard methods for mammals. Wilson, D.E., Cole, F.R., Nichols, J.D., Rudran, R., and Foster, M.S. eds. Smithsonian Institution Press, Washington, DC, 409 pp.

Hayssen, V. and Kunz, T.H. 1996. Allometry of litter mass in bats: Comparisons with maternal size, wing morphology, and phylogeny. Journal of Mammalogy. 77(2):476-490. PDF of article (199kb)

Hayssen, V. 1995. Milk: It does a baby good. Natural History Magazine. 104(12):36.

Hayssen, V., van Tienhoven, A., and van Tienhoven, A. 1993. Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data. Cornell University Press, Ithaca and London. 1023 pages.

Hayssen, V. 1993. Empirical and theoretical constraints on the evolution of lactation. Journal of Dairy Science. 76(10):3213-3233. PDF of article (506kb)

Hayssen, V. 1991. Dipodomys microps. Mammalian Species. 389:1-9.

Blackburn, D.G., Hayssen, V., and Murphy, C. 1989. The origins of lactation and the evolution of milk: A review with new hypotheses. Mammal Reviews. 19:1-26.

Dickman, C.R., Hayssen, V., and King, D.H. 1987. Effects of seasonal reversal of photoperiod on the reproductive rhythm of a small marsupial. Journal of Zoology. 213:766-768.

Hayssen, V., Lacy, R.C., and Parker, P.J. 1985. Metatherian repro-duction: Transitional or transcending. American Naturalist. 126:617-632.

Hayssen, V. and Blackburn, D.G. 1985. a-Lactalbumin and the origins of lactation. Evolution. 39:1147-1149.

Hayssen, V. and Lacy, R.C. 1985. A reexamination of basal metabolic rates in mammals: Taxonomic differences in the allometry of BMR and body mass. Comparative Biochemistry and Physiology. 81A:741-754.

Hayssen, V. 1984. Basal metabolic rate and the intrinsic rate of increase: An empirical and theoretical examination. Oecologia 64:419-424.

Hayssen, V. 1984. Mammalian reproduction: Constraints on the evolution of infanticide. p. 105-123. In Infanticide: Comparative and Evolution-ary Perspectives. Hausfater, G. and Hrdy, S.B. eds. Aldine, New York.

Fadem, B.H., Trupin, G.L., Maliniak, E., VandeBerg, J.L., and Hayssen, V. 1982. Care and breeding of the gray, short-tailed opossum (Monodelphis domestica). Laboratory Animal Science. 32:405-409.