Scientific Classifications
Scientists often classify animal reproduction by degree of development that occurs before the new individuals are expelled from the adult body, and eggs by the degree of yolk they include.
Read more about this topic: Egg (biology)
Famous quotes containing the word scientific:
“The aggregate of all knowledge has not yet become culture in us. Rather it would seem as if, with the progressive scientific penetration and dissection of reality, the foundations of our thinking grow ever more precarious and unstable.”
—Johan Huizinga (1872–1945)