To see why, we must remember that muscles first appear in the Cambrian explosion.
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.
Researchers say a growing number of adults have a persistent, prominent median artery in their arms, an artery that’s important in the embryonic stage.
Imagine the New York Public Library cutting every manual in half daily, or more often, and sending every month entire halves to a library in London.
Physician Howard Glicksman explains the hugely complex blood flow systems required to keep us clear-headed and alive.