Baron Georges LÃ opold ChrÃ tien FrÃ dÃ ric Dagobert Cuvier ( 23 August 1769 â `` 13 May 1832 ) was a French naturalist and zoologist . Jean LÃ opold Nicolas FrÃ dÃ ric Cuvier ( August 23 , 1769 â `` May 13 , 1832 ) , known as Georges Cuvier , was a French naturalist and zoologist .