The co-evolution of social behavior and cranial morphology in sheep and goats (Bovidae, caprini) [by] William M. Schaffer and Charles A. Reed.

v.61(1971)

Courtship and mating behavior in snakes, by D. Dwight Davis.

v.20:no.22(1936)

Differential epibiont fouling in relation to grooming behavior in Palaemonetes kadiakensis / Bruce E. Felgenhauser and Frederick R. Schram.

v.72:no.7(1978)

The descent of man, and selection in relation to sex / by Charles Darwin.

1

The descent of man, and selection in relation to sex. By Charles Darwin.

1

The descent of man, and selection in relation to sex / by Charles Darwin.

2

Evidence for parthenogenesis in the featherwing beetles, with a taxonomic review of a new genus and eight new species (Coleoptera: Ptiliidae) [by] Henry S. Dybas.

v.51:no.2(1966)