Lamarckism

Japanese: ラマルキズム(英語表記)Lamarckism
Lamarckism
This is an evolutionary theory proposed by the Frenchman C. Lamarck in the early 19th century, which states that the characteristics acquired by parents can be passed on to their offspring. According to this theory, organs that animals use continuously become more and more developed over successive generations, while those that are not used gradually degenerate, become vestigial, and eventually disappear. This theory states that living things evolve in this way, but it is no longer believed today. However, it is considered to be the first to state the concept of evolution. At the base of Lamarck's ideas is the view that all living things have an inherent progressive tendency, and that the development of specific characteristics is the development of this tendency in a specific direction determined by external conditions.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
フランスの C.ラマルクが 19世紀初頭に唱えた進化学説で,親が獲得した諸形質は子孫に伝わりうるというものである。この説によると,動物が継続して使用する器官は代を重ねるにつれてますます発達し,反対に使用しない器官は次第に退化して痕跡的となり,やがて消失する。このようにして生物の進化が行われるという説であるが,今日では信じられていない。しかし,進化の概念を最初に述べたものとして評価される。なおラマルクの考えの根底には,生物にはすべて前進的傾向が内在するという見方があり,それが外面条件に規定されて特定の方向に発展するのが,特定形質の発達なのである。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

<<:  Lamarck - Jean-Baptiste de Monet, Chevalier de Lamarck

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