Siden vi har dem som klager på kilder så hentet jeg pensumboka fra arkeologi The Complete World Of Human Evolution av Chris Stringer og Peter Andrews.

Siden jeg ikke gidder å omskrive de ~200 sidene som beskriver dette, skriver jeg heller av en enkel tabell fra s. 131.

The course of human evolution over the past 6 million years.



Tallene på siden er millioner år siden.

Ser man på tabellen er det helt klart at vi eller slektningene våre utvandret fra Afrika for lenge siden. (og ja, den flotte tabellen er et resultat av paint!)

Kan også ta med de to teoriene som beskriver det som mange spør om. Hvordan de forskjellige trekkene utviklet seg. Blir direkte sitater fra boka her.

The Multiregional Model

Supporters of one extreme view, the Multiregional Model(now very much a minority view), belive that Homo erectus gave rise to Homo Sapiens across its whole range, which about 1 milion years ago, included Africa, China. Indonesia and, perhaps Europe. According to this view, when Homo erectus dispersed around the old world over a milion years ago it gradually began to develp both the modern features and the regional differences that lie at the root of of modern "racial" variation. Particular features in a given region developed early on, and persists in the local descendant populations today.

The out of africa model

The opposing view is that Homo sapiens had a restricted origin in time and space. Modern proponents of this idea such as Gunter Brauer and Chris Stringer, focus on Africa as the most inportant region. Some argue that the later stages of human evolution, like the earlier ones, where characterized by evolutionary splits, and the coexistence of separate species. They recognize an intermediate species between Homo erectus and Homo sapiens, called Homo heidelbergensis. On this view, by about 600,000 years ago some erectus populations in Africa and Europe had changed sufficiently in skull form to be rcognized as a new species, Homo heidelbergensis, named after a 500,000 years old jawbone found at mauer, near heidelberg, in germany. Members of this species had a less projecting face and, more prominent nose, and a more expanded braincase than erectus fossils. Homo heidelbergensis is known from Africa, Europe and possibly China, between about 600,000 and 300,000 years ago. From the "out of Africa" viewpoint, after about 400,00 years, heidelbergensis apparantly gave rise to two decandant species, Homo sapiens and Homo Neanderthalensis, the former evolving in Africa and the latter in Europe and Western Asia. About 100.000 years ago, the african stock of early modern humans started to spread from the continent into adjoining regions and eventually reached Australia, Europe and the Americas(probably by 50,000, 45 000, and 15,000 years ago respectively). Regional (racial) variation only developed during and after the dispersal, so that there was no continiuety of regional features between Homo erectus and present inhabitants in the same regions.

Huff, dette ble mye mer avskrift en først planlagt. Så de er begge noe kortet ned. Men de gir et bilde av hvordan man idag mener vi har utviklet oss forskjellig. Desidert størst støtte har den andre teorien. Det er også noen som mener at sannheten ligger en plass imellom disse teoriene. Men ideen var å skrive av boken siden jeg anså muligheten for at noen i denne tråden tilfeldigvis hadde boken hjemme som liten. Så å faktisk sjekke den kilden blir vanskelig.