

Instead, they were based on animals such as apes, monkeys, and oxen.


He noticed that many of Galen's observations were not even based on actual humans. A young anatomist of Flemish descent made famous by a penchant for amazing charts, he was systematically investigating and correcting the anatomical knowledge of the Greek physician Galen. Around the same time, Andreas Vesalius was also making some strides of his own.
