Noting the fossil record of a tall people with narrow facial features several thousand years ago in East Africa, including locations such as Gambles Cave in the Kenya Rift Valley and Olduvai Gorge in northern Tanzania, Hiernaux argues that while there was a migration, it was not as dramatic as some sources have proposed.
Ukazujući na fosilne nalazima visokih osoba s uskim crtama lica prije nekoliko tisuća godina u istočnoj Africi, uključujući i mjesta kao što su Gambles Cave u Kenya Rift Valley i Olduvai Gorge u sjevernoj Tanzaniji, Hiernaux tvrdi da, iako je došlo do migracije, nije bila tako dramatična kao što neki izvori predložu.