system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If the northern white rhinoceros is on the verge of extinction (~5 still alive), why isn't in vitro fertilization used to facilitate breeding? Could the southern white rhinocerous be used as a host? Are the two subspecies compatible enough for this plan to work?
gpt
Because the population is so low that inbreeding would be a problem almost instantly, secondly large mammals normally don't breed more than a few times in their lives.  The ability for the species to recover is pretty much lost at this point.