Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!ukc!tcdcs!swift.cs.tcd.ie!ccvax.ucd.ie!jlynch From: jlynch@ccvax.ucd.ie (John M. Lynch) Newsgroups: sci.bio Subject: Pheromones and Sex Message-ID: <6141.26beacb6@ccvax.ucd.ie> Date: 7 Aug 90 11:57:42 GMT References: <37900@ucbvax.BERKELEY.EDU> <1990Aug1.150051.17707@mercury.cair.du.edu> Distribution: sci.bio Organization: University College Dublin Lines: 15 In article <1990Aug1.150051.17707@mercury.cair.du.edu>, mhassman@zephyr.cair.du.edu (Arlo Crymble) writes: > Question: Isn't the bull able to determine if > he has had intercourse with the cow by smell and > can he also determine if the cow is pregnant in > the same fashion? > Pheromonal control plays an important part in reproduction in all terrestrial mammals. Work has shown that a male can individually identify females by their scent and determine their reproductive status. Pheromones can act as inducers of sexual behaviour. Similarly they can cause oestrus synchrony in females.-- ============================================================================== John M. Lynch, Mammal Research Group, Department of Zoology, University College Dublin, Belfield, Dublin 4, Ireland. JMLYNH92@IRLEARN.UCD.IE or JLYNCH@CCVAX.UCD.IE. ...... a zoologist who likes computers ! ==============================================================================