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"This book discusses the origin and radiation of the synapsids from their sail-backed pelycosaur ancestor to their diverse descendants, the therapsids or mammal-like reptiles, which eventually gave rise to mammals." -- Inside dust jacket.
'I think that, if required on pain of death to name instantly the most perfect thing in the universe, I should risk my fate on a bird's egg' Thomas Wentworth Higginson, 1862 How are eggs of different shapes made, and why are they the shape they are? When does the shell of an egg…