There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
So in order to possibly clone something similar to the Cave Lion, and we know that the Cave Lion is more related to extant lions (from both continents), we can extract Cave Lion DNA and put it within a modern lion's embryo and see it grow? That sounds pretty interesting, although since the Cave Lion is extinct, we wouldn't know what exact effects intermixing between the two would have, similar to the interbreeding between a lion and tiger which reduces fertility and encourages ridiculous sizes. So the "clone" could not even resemble a perfect mix between the two.