I am not being racist but why are they all black?

Question

http://www.youtube.com/watch?v=jsV7LvrkqUA what makes black people faster than all the other sprinters??

Answer 1

They have two Achilles tendons in the back of each foot,  where everyone else has just one per foot. My son told me the other day he had heard it from someone else so I'm not sure if it's true. It does make sense though.

Answer 2

idk... good question

Answer 3

Thigh muscles and gluteus maximus...

Answer 4

They are taller. It lets them take longer strides and therefore go faster.

Answer 5

one time in sociology my professor said that geography has something to do with it, but I may be wrong

take kenya,

you have a limited space of technological transportation and the geography is rugged, rocky and vast.  So the only way to get around is running or walking, (traditional transportation)