A Role for Aggregation Pheromones in the Evolution of Mammallike Reptile Lactation

@article{Graves1983ARF,
  title={A Role for Aggregation Pheromones in the Evolution of Mammallike Reptile Lactation},
  author={B. Graves and D. Duvall},
  journal={The American Naturalist},
  year={1983},
  volume={122},
  pages={835 - 839}
}
Current theory concerning the origin and evolution of lactation is modified only slightly from that proposed by Darwin in 1859 (see Long 1969). Long (1972) summarized the major phases as: (1) evolution in mammallike reptiles of a vascularized incubation area, following attainment of homeothermy; (2) preadaptive utilization of cutaneous secretions from such a richly vascularized area for adherence of eggs, or, more likely, for essential moisture; (3) evolution of the marn supium; (4) utilization… Expand
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