What DNA is closest to humans?
Chimpanzee: 96 percent identical By studying the genomes of chimps (which after bonobos are our closest living ancestors), researchers are hoping to understand what makes us uniquely human. Humans and chimps share 99% of their DNA.These three species look alike in many ways, both in body and behavior. But for a clear understanding of how closely they are related, scientists compare their DNA, an essential molecule that’s the instruction manual for building each species. Humans and chimps share a surprising 98. DNA.