Science: Lamarck or Weismann?

The possibility of the inheritance of acquired characteristics — that bone of contention around which so much of evolutionary conflict has raged for 100 years—has received new support from the work of Professor Paul Kammerer, of the University of Vienna, who has just demonstrated his findings before the Cambridge University Society of Natural History. The theory, first developed by Jean Baptiste Lamarck (1744-1829), who held that changes in the individual due to altered needs and habits are passed on to descendants (e. g., the neck of the giraffe is long because its...

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