Thanks, tsuwm for the URL. One early morning one of my wife's sheep went way back down pasture to lamb. Apparently a coyote interrupted the lambing, and ate part of the lamb. The ewe, without a mark on her, apparently as result of the stress, never stood up again, though she lived almost two weeks, and cost me a bundle in vet fees. The vet could not tell me what the pathological process was, but it was though she had had a hemorrhage into adrenals.