I'd be pleased if this was a mistake
It actually doesn't matter. Besides cattle and sheep, other mammals that have been cloned from somatic cells include: cat, deer,dog, horse, mule, ox, rabbit and rat. In addition, a rhesus monkey has been cloned by embryo splitting.
There are three different types of artificial cloning: gene cloning, reproductive cloning and therapeutic cloning.
Gene cloning produces copies of genes or segments of DNA. Reproductive cloning produces copies of whole animals. Therapeutic cloning produces embryonic stem cells for experiments aimed at creating tissues to replace injured or diseased tissues.
From a technical perspective, cloning humans and other primates is more difficult than in other mammals. One reason is that two proteins essential to cell division, known as spindle proteins, are located very close to the chromosomes in primate eggs. Consequently, removal of the egg's nucleus to make room for the donor nucleus also removes the spindle proteins, interfering with cell division. In other mammals, such as cats, rabbits and mice, the two spindle proteins are spread throughout the egg. So, removal of the egg's nucleus does not result in loss of spindle proteins. In addition, some dyes and the ultraviolet light used to remove the egg's nucleus can damage the primate cell and prevent it from growing.
Of course, there are some technical problems that need to be overcome. But nobody said it is impossible.
Therefore, lets concentrate on other aspects.
While living out lives, we develop, we learn, then our cells stop dividing and we grow old - we never the same. Cloning is as natural as life itself.
All we need is to preserve our memories, history and legal status, which in a nutshell is nothing but information.
Information is timeless, and we can exploit that property.
My idea is to make a backup of all this and wait till cloning becomes a reality. Looks easy, but it's not.