Certain ethnic sub-groups of a race display clear superiority regarding particular abilities or traits. For example, the vast majority of championship long-distance runners come from Kenya, and the vast majority of them come from a small ethnic minority of about 4 million people. The western obsession with painting all differences as cultural or behavioral (e.g., they are great runners because they run everywhere) turns out to be false in this case (e.g., most Kenyan running champions reported having walked or rode the bus to school every day), as it has been found that people from this group have an actual physical advantage for running which is genetic.
Here's an article on this subject:
Why Kenyans Make Such Great Runners: A Story of Genes and Cultures - Max Fisher - The Atlantic
Broadly speaking, people in the west are so culturally indoctrinated with the idea that certain ideas are too politically incorrect to even be acknowledged or discussed, that asking questions regarding race will invariably result in pretty predictable and useless non-answers.