[–] McFluffy 0 points 1 point 1 point (+1|-0) ago (edited ago)
because a homo sapien was actually very stupid, they just breed really well and knew how to fight/defend.
the neanderthal was the smart geeky human that did not breed very well and thus was out bred or killed in combat. eventually they interbred with the sapien.
whites have around 1-5% neanderthal DNA, while African blacks have 0%.
[–] ditch-digger 0 points 2 points 2 points (+2|-0) ago
Wish I had saved the source of that bit. But race is a specialized term for species, the only other word we use like it is breed.
[–] jxfaith ago (edited ago)
Breed is more accurate than species here. Best definition I can come up with for breed is a set of geographically concentrated traits, often distinguishable by visual qualities. Think dogs: coloration, face shape, hair color, stature.
The major scientific requirement for speciation is sexual isolation: distinct species cannot reproduce between their populations. Highly similar populations can often reproduce but yield sterile hybrids. Considering the viability of mixed-race offspring among humans, it's inappropriate to consider other races as different species.
[–] ditch-digger 0 points 2 points 2 points (+2|-0) ago (edited ago)
Incorrect.
http://rafonda.com/interbreeding_between_species.html
[–] kittysaysmeownow ago
explain the Liger then.