A lone rooster sees a lot of all the hens in the flock, but the hen with the largest comb gets a bigger dose of sperm - and thus more chicks. This sounds natural, but behind all this is humanity's hunger for eggs.
Sep 04, 2012 in Plants & Animals
(PhysOrg.com) -- A study has gained new insight into the minds of domestic hens, discovering, for the first time, that domestic hens show a clear physiological and behavioural response when their chicks are mildly distressed.
Mar 09, 2011 in Plants & Animals