Overall, the researchers found that the human and orangutan genomes are 97 percent identical. However, in a surprising discovery, the researchers found that at least in some ways, the orangutan genome evolved more slowly than the genomes of humans and chimpanzees, which are about 99 percent similar. Additionally, orangutans show similar feelings as humans. Studies have shown that they are able to laugh and feel happy, feel loved especially around other family, and they can feel sad and hungry.
However, in a surprising discovery, the researchers found that at least in some ways, the orangutan genome evolved more slowly than the genomes of humans and chimpanzees, which are about 99 percent similar.