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The march of progress is the canonical representation of evolution – the one picture immediately grasped and viscerally understood by all. ... The straitjacket of linear advance goes beyond iconography to the definition of evolution: the word itself becomes a synonym for progress. ...
Shelgon (#372) It jumps down the cliffs it lives on in hopes of being able to fly. Because of this, its head has grown hard enough to break rocks and withstand its falls. Shelgon Komorū (コモルー) [39] Dragon Bagon (#371) Salamence (#373) It is covered in a bony, armored shell. Its cells are in constant change to prepare for its evolution.
The idea of a tree of life arose from ancient notions of a ladder-like progression from lower into higher forms of life (such as in the Great Chain of Being).Early representations of "branching" phylogenetic trees include a "paleontological chart" showing the geological relationships among plants and animals in the book Elementary Geology, by Edward Hitchcock (first edition: 1840).
Orthogenesis, also known as orthogenetic evolution, progressive evolution, evolutionary progress, or progressionism, is an obsolete biological hypothesis that organisms have an innate tendency to evolve in a definite direction towards some goal (teleology) due to some internal mechanism or "driving force".
Edward Hitchcock's fold-out paleontological chart in his 1840 Elementary Geology. Although tree-like diagrams have long been used to organise knowledge, and although branching diagrams known as claves ("keys") were omnipresent in eighteenth-century natural history, it appears that the earliest tree diagram of natural order was the 1801 "Arbre botanique" (Botanical Tree) of the French ...
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The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the ...
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