
© Ysangkok/Wikipedia"Orangutan image taken by Tom Low at Camp Leakey, Tanjung Puting, Kalimantan, Indonesia (2003)."
Orangutans, the most distant of our great ape relatives, changed less in 15 million years than our species has in 200,000. And yet orangutans also have tremendous genetic diversity, an apparent contradiction that has created a strange evolutionary riddle.
The family
Hominidae, commonly known as the Great Apes, has four main members: humans, chimpanzees, gorillas, and orangutans. Humans and chimpanzees are the most closely related species, and then both are more related to gorillas than orangutans, who are all alone on their corner of the family tree. Orangutans are now the latest members of the great ape family to have their genomes sequenced, and they've revealed some surprising details about our evolutionary story.
The most shocking has to be that the orangutan genome hasn't changed in 15 million years. To put that in some perspective, our species didn't even really exist until 200,000 years ago, and even the Homo genus doesn't stretch much further back than 2.4 million years. Chimpanzees don't become distinct from our evolutionary ancestors until about six million years ago, and gorillas don't emerge until about 7 million years ago. Orangutans are, by the standards of the rest of their family, an incredibly ancient species.
Comment: What a load of nonsense. This architect guy sounds like he fell out of the stupid tree and hit every branch on the way down. The pyramid never was a burial chamber.