The animal standing at my feet was a sheep, but there was something very different about it. Instead of the usual thick coat of wool, this sheep had a sleek deer-like coat of hair. The temperature was climbing from a low of twenty below the night before to around zero the December morning we visited Piel Farm in Abbott, Maine. Two hundred and fifty or so head of sheep housed in south facing open sheds were contentedly lying on the dry manure pack or walking about chewing their cuds. The only indication they showed of the cold was their white breath in the crisp, dry air.