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German zoologist Ernst Heinrich Philipp August Haeckel |
In 1866 in Berlin, in his attempt to visualize the difficult concepts of phylogenetic relationships, but also likely inspired by many religious and philosophical traditions, the zoologist Ernst Heinrich Philipp August Haeckel drew his biological theory as a tree of life. This ended up supporting many of the ideas of Charles Darwin and laying the foundation for modern ecology and ecosystem studies. 150 years later we have so much technology to assist but rarely demonstrate our ideas as clearly or beautifully in science.
It strikes that this image is something that we might be equally likely to see on the walls of a herbal medicine Ayurvedic healer as in a biotechnology lab. More artful than the modern stick-figure phylogenetic trees of genetic sciences, yet more structured and perhaps more logical than information we might find in the sacred world trees of many of the world's religions.
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Haeckel's Árbol de la vida según: Haeckel, E. H. P. A. (1866). Generelle Morphologie der Organismen: allgemeine Grundzüge der organischen Formen-Wissenschaft, mechanisch begründet durch die von C. Darwin reformirte Decendenz-Theorie. Berlin. |
Since Haeckel's time there have, of course, been some advances in the science of evolution. We now understand much more about the origins of species and the phylogenic relationships between them. Here I speak of the collective we and not the general masses. it seems that many of us mistake the tree of life for a linear process that begins with the bacteria and ends with humans. Instead it starts with our common microbe ancestors 4.5 billion years ago, and ends with the diversity of all our cousin species that we share the world with today.
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Credit: M.F. Bonnan |
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