Read all the various explanations about cows and steers and oxen etc, all of
which are pretty accurate. One detail that's not been noted I think, though,
is the flavour of beef. Bull's meat has a very strong flavour, unpleasant
even. Castrate the guy when he's young and when you slaughter him the meat
has a distinctly better flavour... which is why steers = beef, while the
'real' bulls just get on with (as Emma put it) breeding and sitting around
being lazy and bad tempered.
Have wondered just how castration changes meat flavour in the past...
hmmm... any experts on this?