PSY395H5 Lecture Notes - Lecture 5: Saccharin, Platypus, Altricial
Document Summary
Parental behavior: by male paternal behavior, by female maternal behavior. Introduction: any behavior contributing to survival of offspring, as critical a reproductive behavior as copulation, extremely variable by species, fish no parental care, mammals very high parental care. In mammals, varies by offspring development: monotremes (platypus) lay eggs, marsupials (kangaroo) embryonic at birth, eutherian mammals ( true mammals) 3 patterns. Eutherian mammals: semi-precocial young in between, relatively helpless, but can cling, some thermoregulation, primates. Components of prenatal care: carrying, cleaning, nursing, nest building, protection, gathering food, direct parental care, indirect parental care. Blood serum from a brooding hen can induce a non- incubating hen to sit on a clutch of eggs. In males less studied but a sharp decline in androgens is seens. Neuroanatomy: posterior medial hypothalamus of male ring doves reduces courtship behavior, preoptic area (poa): essential for the expression of parental behavior, prolactin binding in the.
