The Irish Elk was not limited to Ireland, though Irish bogs have proven themselves a good source for their remains. Complete skeletal remains have been discovered and a good example is to be found in the Natural History Museum in Vienna. The antlers, such as the ones photographed above, had a diameter of nearly three metres. This particular example is at Bunratty Castle. Experts are unsure what caused their extinction, but some believe it was as a result of climate change after the last Ice Age.