(from a debate about the differences between black and white people.)
Our bone and muscle structure is generally speaking quite different, and black people have a higher bone mineral density and muscle mass meaning they're less buoyant than a comparative white person meaning during the learning phase they find it more difficult to swim.
So I giggled it :
http://jcem.endojournals.org/cgi/conten ... t/82/2/429 ,-Abstract
http://jcem.endojournals.org/cgi/content/full/82/2/429 Full paper.
So, there's a difference in BMD. The racists are gonna use this as evidence that the whites are superior.
How can I come back on the above comment?