While natural selection works operates over an individual’s ability to survive, sexual selection operates over an individual’s ability to mate and successfully sire offspring. In other words, sexual selection is a process through which individuals of a given species struggle to be more reproductively successful. It works in two primary ways, first identified by Charles [...]
Wyman M.T., Mooring M.S., McCowan B., Penedo M.C.T., Reby D. & Hart L.A. (2012). Acoustic cues to size and quality in the vocalizations of male North American bison, Bison bison, Animal Behaviour, 84 (6) 1381-1391. DOI: 10.1016/j.anbehav.2012.08.037
Charlton B.D., Ellis W.A.H., Brumm J., Nilsson K. & Fitch W.T. (2012). Female koalas prefer bellows in which lower formants indicate larger males, Animal Behaviour, 84 (6) 1565-1571. DOI: 10.1016/j.anbehav.2012.09.034
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