Common Design Features: All spring aligners are available for both arches. Standard design is 3-3, although 4-4 is very common & often used when canine correction is desired. Wraparound designs are also available with Mushroom & Super Spring designs.
exists and is an alternate of . The most generally accepted scientific theory states that the first humans (defined as members of the genus Homo) originated in Africa. The oldest known fossil of a human ancestor (a female Ardipithecus ramidus specimen nicknamed Ardi, 3.2 million years old) at a site called Aramis in the Middle Awash region of the Afar Desert in Ethiopia.
Homo sapiens evolved in Africa around 150,000 years ago. The modern human, known as Homo sapiens sapiens, is a sub species of the original Home sapiens.We are constantly thinking about our origins.he first modern Humans came out of Africa 200,000 years ago. This theory believes that Homo sapiens sapiens evolved in Africa and were truly the first modern humans.