Cloning works rather well now. Here are six polo ponies, Cuartetera 01 through 06, all clones of a famous polo pony.[1] Their owner has been winning world class polo matches on these mares. They're strong and healthy and very real.
[1] https://www.science.org/content/article/six-cloned-horses-he...
Well there are cloned humans now…
It's interesting to see how the spots on these horses look different. I thought it was chimerism like in cows, but apparently it's extremely rare in horses, but still there are epigenetic factors in play.
I wonder how much gene expression differs in clones of particular species raised in similar environments, I would expect the amount of difference between genetically identical individuals to differ by species, but I have no idea by how much, and how would humans rate on this measure.