Ancient DNA in ice, such as the Ötzi the Iceman (Handt "et al." 1994), or through rapid desiccation, such as high-altitude mummies from the Andes (c.f. Pääbo 1986; Montiel "et al." 2001), as well as various sources of artificially preserved tissue (such as the chemically treated mummies of ancient Egypt). However, mummified remains are a limited resource. The majority of human aDNA studies have focused on extracting DNA from two sources that are much more common in the archaeological record – bone and teeth. Several other sources have also yielded DNA, including paleofaeces (Poinar "et al." 2001) and hair (Baker "et al."
OH 5 OH 5 OH 5 (Olduvai Hominid number 5, also known as "Zinjanthropus" or "Nutcracker Man"; colloquially as "Dear Boy") is a fossilized cranium and the holotype of the species "Paranthropus boisei". It was discovered in Olduvai Gorge, Tanzania, by archaeologist-paleontologist Mary Leakey in 1959. Her husband and fellow scientist Louis Leakey initially classified the hominid as "Zinjanthropus boisei" and thought that it was an early ancestor of modern humans that lived approximately 2 million years ago. However, this contention was later withdrawn because of its robust australopithecine features and the discovery of "Homo habilis" soon thereafter. Mary and Louis Leakey