The answer is so obvious.....Stonehenge didn't involved cows because I saw them making it on UK Histury(as mentioned by Broen in the first post) and they didn't use cows then, they used sweaty people in shorts and old T-shirts, who had obviously given up on hygiene and fashion. I wish Tony Robinson was there and fell into the pit - 3,500 years later a space age version of TMA would report on the gruesome sacrifical death of a small greasy man who smelt of turnips.
And pix, obviously cows don't work in the conventional sense (how many cows do u see behind the perfume counter at Debenhams? - I rest my case) but if you get male ones and cut their dangglies off they become oxen and are less aggressive and can be moulded into docile ploughing (i.e. pulling) machines. Oh how a bull suffers gets heaped with shame without his danglies.
NB - my surname is Bull by the way