ontogeny recapitulates phylogeny

The now-discredited scientific theory that an organism's embryonic development, or ontogeny, follows the evolutionary stages of its species, or phylogeny. We were able to disprove Haeckel's theory that ontogeny recapitulates phylogeny by closely studying embryonic development.

Common Names:

Name	Pronounced	Usage
Stacey	STAY-see	English
Yael	-	Hebrew, Biblical Hebrew
Heilyn	-	Welsh
Zakiah	-	Arabic
Seward	SOO-ərd	English
Fairchild	['fɛətʃaild]