[muir_redwoods]

You are looking for Def. #5 from your first reply to my second posting. It's the biological definition that is important here. If asians or africans were true separate races then they could not interbreed with each other or with caucasians and produce fertile offspring. Since they obviously can they are not separate races in a biological sense only as a societal construct that has no valid scientific meaning.

[Luis Gonzalez]

The fact that they can interbreed proves that they are the same species, the fact that they have certain general characteristics makes them separate races.<p.If your point was true, then dogs couldn't cross breed either.

[Pharmboy]

It is different species which typically cannot interbreed. However, several years ago it was reported that a gibbon and a siamang (related species, but with a different number of chromosomes) mated and had viable offspring.

Subspecies (or races) can interbreed and produce fertile offspring (think of dogs, cats and humans).

[Luis Gonzalez]

Hominid Species Timeline

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The chronological chart below shows the main Hominid species (apes in blue, human species in red) and their approximate relationships in time, based on currently available evidence. Below the chart are the species names in a list. Click on a species to find more information about each one.

Australopithecus ramidus -	5 to 4 million years BCE
Australopithecus afarensis -	4 to 2.7 million years BCE
Australopithecus africanus -	3.0 to 2.0 million years BCE
Australopithecus robustus -	2.2 to 1.0 million years BCE
Homo habilis -	2.2 to 1.6 million years BCE
Homo erectus -	2 to 0.4 million years BCE
Homo sapiens -	400,000 to 200,000 years BCE
Homo sapiens neandertalensis -	200,000 to 30,000 years BCE
Homo sapiens sapiens -	130,000 years BCE to present