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healing Can Salamanders Regrow Body Parts?metaplasia heteromorphosis transdifferentiation scar blastema autotomy morphallaxis scab reproduction morphogenesis animal development plant development prenatal development human development ontogeny

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Key People

Lazzaro Spallanzani, detail of an oil painting by an unknown artist; in the collection of the University of Pavia, Italy.

Lazzaro Spallanzani

Italian physiologist

Paul Alfred Weiss

American biologist

Jacques Loeb

Jacques Loeb

German biologist

Charles Manning Child

American zoologist

Wilfred Trotter

British surgeon and sociologist