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."
Fifteen Years Ago relationship. His memories of the past are triggered when he runs into an old friend who mentions the ex-girlfriend's name, and despite his best efforts to make his wife happy he is troubled by his persisting thoughts of the past relationship. "Fifteen Years Ago" was also recorded by other country music artists including The Statler Brothers for their "Bed of Rose's" album in 1970. In 1971, comedian Sheb Wooley, recording under his alias Ben Colder, recorded a parody of the song called "Fifteen Beers Ago." Fifteen Years Ago "Fifteen Years Ago" is a song written by Raymond Smith, and recorded