
Chimp/Human Hybrids Are Probably Myths
Someone probably would have made a humanzee by now if it were possible.

There isn't a scientific consensus over whether such a hybrid is possible. Humans and chimps have DNA that is 95 percent similar, and 99 percent of our DNA coding sequences are the same as well. However, humans have 23 pairs of chromosomes in our DNA, while chimps only have 22. The difference makes bearing healthy young difficult, and the offspring would be infertile. Furthermore, often, differences between the physiology of separate species, even when they're similar, may make interspecies-hybridization impossible.
Hybridization is fairly common in the animal kingdom. It can lead to new species very quickly, as in the case of a new species of finch, as well as "coywolves" and "grolar bears." However, as compelling as it is to see a half-zebra, half-donkey, the concept of a "humanzee" is particularly intriguing because of its potential existential impact. If a half-human, half-chimpanzee could be created, would it have human rights? And how might it fit into larger society?