Suspicious (Real) Anatomy: The Hemangioblast
From Wikipedia: The hemangioblast was first hypothesized in 1900 by Wilhelm His. Existence of the hemangioblast was first proposed in 1917 by Florence Sabin, who observed the close spacial and temporal proximity of the emergence of blood vessels and red blood cells within the yolk sac in chick embryos. In 1932, making the same observation [...]
