The median artery was not caught in the act of “evolving,” either in the micro- or macro- sense. It has been caught in the act of “persisting.”
Ah, the giraffe. Darwin put his mechanism at war with Lamarck’s to explain the giraffe’s long neck. Evolutionists are still battling over the question.
It’s far from clear how natural selection could select for this as an “adaptation” when its most obvious effect is to contribute to carpal tunnel syndrome.
Scientists in Australia have uncovered that more adults now possess a “median artery of the forearm,” contrasted with studies over the past two centuries.