Thomas Henry Huxley

•  Adaptive radiation

  In evolutionary biology, an adaptive radiation is the evolution of ecological and phenotypic diversity within a rapidly multiplying lineage. Starting with a recent single ancestor, this process results in the speciation and phenotypic adaptation of an array of species exhibiting different morphological and physiological traits with which they can exploit a range of divergent environments.

  

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•  Common descent

  In evolutionary biology, a group of organisms have common descent if they have a common ancestor. All living organisms on Earth are descended from a common ancestor or ancestral gene pool. Charles Darwin proposed his theory of universal common descent through an evolutionary process in his On the Origin of Species (1859), and later in The Descent of Man (1871). This theory is now widely accepted by biologists.

  

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•  Darwinism

  Darwinism is a set of movements and concepts related to ideas of transmutation of species or evolution, including ideas with no connection to the work of Charles Darwin. The meaning of Darwinism has changed over time, and varies depending on who is using the term. In the United States, Darwinism is often used by creationists as a pejorative term but in the United Kingdom the term has no negative connotations, being freely used as a short hand for evolutionary theory.

  

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•  Evolution

  In biology, evolution is the change in the inherited traits of a population of organisms through successive generations. When a population splits into smaller groups, these groups evolve independently and develop into new species.

  

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•  Evolutionism

  Evolutionism refers to a theory of evolution, specifically to a widely held 19th century belief that organisms are intrinsically bound to improve themselves, and that changes are progressive and arise through inheritance of acquired characters, as in Lamarckism. The belief was extended to include cultural evolution and social evolution.

  

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•  Timeline of evolution

  This timeline of the evolution of life outlines the major events in the development of life on the planet Earth. For a thorough explanatory context, see the history of Earth, and geologic time scale. The dates given in this article are estimates based on scientific evidence. In biology, evolution is the process by which populations of organisms acquire and pass on novel traits from generation to generation.

  

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•  Evolution of an idea

  

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•  Human evolution

  Human evolution, or anthropogenesis, is the origin and evolution of Homo sapiens as a distinct species from other hominids, great apes and placental mammals. The study of human evolution encompasses many scientific disciplines, including physical anthropology, primatology, archaeology, linguistics and genetics. The term "human" in the context of human evolution refers to the genus Homo, but studies of human evolution usually include other hominids, such as the Australopithecines.

  

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•  Gamete

  A gamete (from Ancient Greek γαμέτης; translated gamete = wife, gametes = husband) is a cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum (or egg)—and a male produces the smaller tadpole-like type—called a sperm.

  

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•  Historicism

  Historicism is a mode of thinking in which the basic significance of specific social context--e.g. , time, place, local conditions--is central; whereas the notion of fundamental generalizable immutable "laws" in the realm of sociology/social behaviour tends to be rejected. The term has developed different and divergent, though loosely related, meanings. Elements of historicism appear in the writings of Italian philosopher G. B.

  

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•  Planetarian: Chiisana Hoshi no Yume

  

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•  Church monument

  

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•  Lower Bay (TTC)

  

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•  Tycho Brahe (crater on Mars)

  

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•  Grosssiedlung Siemensstadt

  

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