Do mammoths exist

While in theory possible, due to the large amount of well preserved mammoth remains in the arctic tundra that has lead to a wealth of genetic information, there are still many roadblocks. Mammoth genetics has reached the point where one can in fact download a mammoth genome from researchers, and researchers have inserted mammoth genes into elephant cells in a lab, but one of the primary problems is the elephant (and presumed mammoth) reproductive system. The elephant reproductive system is complicated enough that in vitro elephants are problematic leading to conservation concerns, in vitro mammoths or elephant-mammoth hybrids could be impossible.