Abstract Quote by Ernst Haeckel
![“Phylogeny and ontogeny are, therefore, the two coordinated branches of morphology. Phylogeny is the developmental history [Entwickelungsgeschichte] of the abstract, genealogical individual; ontogeny, on the other hand, is the developmental history of the concrete, morphological individual.” quote by Ernst Haeckel](https://sms4smile.com/quotes/img-quotes/bfa/ernst-haeckel-20972_abstract_phylogeny-and-ontogeny-are-therefore-the_1640087.jpg)
“Phylogeny and ontogeny are, therefore, the two coordinated branches of morphology. Phylogeny is the developmental history [Entwickelungsgeschichte] of the abstract, genealogical individual; ontogeny, on the other hand, is the developmental history of the concrete, morphological individual.”
About This Quote
Source Book: The History of Animals, Ernst Haeckel, 1866
Morphology studies both the evolutionary lineage of a species and the individual development of an organism, linking broad ancestry with specific form.
In simple terms: Studies both species history and individual development.
Key Takeaway
Consider both lineage and personal growth.
Themes
biology
development
evolutionary theory
Mood
analytical
inquisitive
Type
scientific
educational
When to use this quote
- research labs
- education curricula
- clinical diagnostics
- conservation planning
Key Concepts
phylogeny
ontogeny
morphology
Questions to Reflect On
- How does evolutionary history shape current traits?
- What can individual development tell us about species evolution?
A Different Perspective
May oversimplify complex interactions between genetics and environment.
![“We are compelled by reflection to recognize that God is not to be placed against the material world [as in Christianity], but must be placed as a 'divine power' or 'moving spirit' within the cosmos itself ... All the wonderful phenomena of nature around us, organic as well as inorganic, are only…” quote by Ernst Haeckel](https://sms4smile.com/quotes/img-quotes/2f0/ernst-haeckel-20972_christianity_we-are-compelled-by-reflection-to-recogn_133705.jpg)
![“Man is not distinguished from [the animals] by a special kind of soul, or by any peculiar and exclusive psychic function, but only by a higher degree of psychic activity, a superior stage of development.” quote by Ernst Haeckel](https://sms4smile.com/quotes/img-quotes/83b/ernst-haeckel-20972_activity_man-is-not-distinguished-from-the-animal_721744.jpg)
