The largest deer that ever existed, it had antlers that could reach twelve feet long. It was a successful species that lived across Eurasia and was notable for it's extinction on Ireland, although it held on for hundreds of years more in Scotland, England, Wales and the Isle of Man. The Irish Elk wasn't particularly exclusive to Ireland and it wasn't an elk as it's closest surviving relative is the fallow deer.
So, let's say South Korean geneticists acquire largely intact giant deer cells and what would/should they do with it if they could make a sustainable albeit a low genetic diverse population? This is purely hypothetical, since we usually don't talk about other animals that have a likelihood of being cloned/hybridized like the Irish elk, woolly rhinoceros, cave lion, thylacine or wild horse.