Jamaicans are genetically linked to a few parts of Africa. Mostly Nigeria and Ghana whom have superior sprinting genes. This contrasts to the USA whom traits stretch out a bit farther out among West Africa and Central Africa.
But the genes are a sleeping giant. I Myself I lived off natural ability for 90% of my track career. I didn't train, didn't practice, stretch.. nothing. Literally showed up outta bed and scooped my medals. Without a ounce of effort a Nigerian man can place in the top 10 globally. Every Olympics you will see a rag tag of Nigerian men in the sprints and maybe one will finish 6th or 5th. The differences in all of this is waking up that sleeping giant/dragon.
Jamaica gets a lot of credit for getting these kats out and running from a young age. Many of their exports like Christie and Bailey we're running around like wild men as children in the rock playing soccer or running races. They get the kinks ironed out smooth so by the time the kid is 14 he can simply just stack up his routine to increase and untap even more potential.
My country has very little training infrastructure, most sprinters train in Europe and become jaded and swap citizenship. You will always see some random bush man from nija running for some strange spot like Sweden or Germany. This can be said about Canada or Nigeria. In Canada we have more Jamaican immigrants then the UK I believe but we still only pump out runners now and then. The old guard of Esmie, Surin, Chambers and Bailey all we're born and raised in the islands and immigrated to Canada, the new crop mostly are 2nd generation and did not have that early start like i mentioned above.
JA knows whats up they have created a sprint factory and are now just finding young kids and coaching them up. No more late starters whom peak for 4-6 years or runners whom are in the UK, Canada or other Commonwealth nations.
This is the golden age of track. Sprints have been around for 100+ years but this is the only time where you have equal competition of all nations and no drugs. The sports cleaned up at around 1994 and after that it has been growing to what you see now. When can you think of a time when your nations alternates are faster than 80% of the worlds runners? Usually it was a good 3-4 runners globally and that's it. Now we have a good crop of at least 8-10 whom are clocking elite speeds.
Another broad that is bangin' is Lolo Jones:
^ She's borderline to ripped for me tho. Her being tall would kill as she is*really* ripped....but I'd still hit. She us supposedly a "virgin" too and is on some big crusade about it like Tebow. People say her and Tebow should hook up and have Super children.