Thursday, November 01, 2007

Born This Day: Sir Gavin de Beer

Illo © Nick Longrich
Nov. 1 1899 – June 21, 1972

From Today In Science History:

de Beer was an English zoologist and morphologist who contributed to experimental embryology, anatomy, and evolution. He refuted the germ-layer theory and developed the concept of paedomorphism - the retention of juvenile characteristics of ancestors in mature adults).

From examination of the fossil Archaeopteryx, De Beer proposed mosaic evolution with piecemeal evolutionary changes to explain the combination of bird and reptile features.