In 2000 , a special section of the Proceedings of the National Academy of Sciences ( PNAS ) was devoted to evo-devo , and an entire 2005 issue of the Journal of Experimental Zoology Part B : Molecular and Developmental Evolution was devoted to the key evo-devo topics of evolutionary innovation and morphological novelty . In 2000 , a special section of the Proceedings of the National Academy of Sciences ( PNAS ) was devoted to `` evo-devo '' , and an entire 2005 issue of the Journal of Experimental Zoology Part B : Molecular and Developmental Evolution was devoted to the key evo-devo topics of evolutionary innovation and morphological novelty .