TY - RPRT TI - Darwin, instinct, and ethology. AU - C G Beer PY - 1983 DO - 10.1002/1520-6696(198301)19:1<68::aid-jhbs2300190108>3.0.co;2-0 UR - https://pubmed.ncbi.nlm.nih.gov/11611170/ ID - 11611170 ER -