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The word etymology is derived from the Ancient Greek word ἐτυμολογία (etumologíā), itself from ἔτυμον (étumon), meaning ' true sense or sense of a truth ', and the suffix -logia, denoting ' the study or logic of '. [3] [4] The etymon refers to the predicate (i.e. stem [5] or root [6]) from which a
Evolutionary thought, the recognition that species change over time and the perceived understanding of how such processes work, has roots in antiquity. With the beginnings of modern biological taxonomy in the late 17th century, two opposed ideas influenced Western biological thinking: essentialism, the belief that every species has essential characteristics that are unalterable, a concept ...
A tree of life, like this one from Charles Darwin's notebooks c. July 1837, implies a single common ancestor at its root (labelled "1"). A phylogenetic tree directly portrays the idea of evolution by descent from a single ancestor. [3] An early tree of life was sketched by Jean-Baptiste Lamarck in his Philosophie zoologique in 1809.
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
[f] The English word human is from the Latin humanus, the adjectival form of homo. The Latin homo derives from the Indo-European root * dhghem, or 'earth'. [222] Linnaeus and other scientists of his time also considered the great apes to be the closest relatives of humans based on morphological and anatomical similarities. [223]
The tree of life or universal tree of life is a metaphor, conceptual model, and research tool used to explore the evolution of life and describe the relationships between organisms, both living and extinct, as described in a famous passage in Charles Darwin's On the Origin of Species (1859). [1]
In the 2012 computer animated movie The Lorax (based on the Dr. Seuss book of the same name and now streaming on Peacock!) the residents of Thneedville live in a world without trees. Unfettered ...
This is a list of English words inherited and derived directly from the Old English stage of the language. This list also includes neologisms formed from Old English roots and/or particles in later forms of English, and words borrowed into other languages (e.g. French, Anglo-French, etc.) then borrowed back into English (e.g. bateau, chiffon, gourmet, nordic, etc.).