Early cetaceans like Ambulocetus natans possessed hindlimbs, derived from their walking ancestors, but no longer useful in their marine environment.

Macroevolution

Macroevolution Macroevolution is evolution on a scale at or above the level of species, in contrast with microevolution, which refers to smaller evolutionary changes of allele frequencies within a species or population. Macroevolution and microevolution describe fundamentally identical processes on different scales. The process of speciation may fall within the purview of either, depending on the forces thought...

A tulip flower exhibiting a partially yellow petal due to a mutation in its genes

Mutation

Mutation In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism, virus, or extra chromosomal DNA. Mutations result from errors during DNA replication, mitosis, and meiosis or other types of damage to DNA (such as pyrimidine dimers that may be caused by exposure to radiation or...

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Alternatives To Evolution By Natural Selection

Alternatives To Evolution By Natural Selection Alternatives to evolution by natural selection, also described as non-Darwinian mechanisms of evolution, have been proposed by scholars investigating biology since classical times to explain signs of evolution and the relatedness of different groups of living things. The alternatives in question do not encompass religious...

Darwin researched how the skulls of different pigeon breeds varied, as shown in his Variation of Plants and Animals Under Domestication of 1868.

Reaction To Darwin’s Theory

Reaction To Darwin’s Theory This article covers the reaction to Darwin’s Theory. The immediate reactions to On the Origin of Species, the book in which Charles Darwin described evolution by natural selection, included international debate, though the heat of controversy was less than that over earlier works such as Vestiges of Creation. Darwin monitored...

Charles Darwin

Charles Darwin

Who Is Charles Darwin? Charles Robert Darwin, (12 February 1809 – 19 April 1882) was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. His proposition that all species of life have descended over time from common ancestors is now widely accepted, and considered...

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Religious Experience

Religious Experience A religious experience (sometimes known as a spiritual experience, sacred experience, or mystical experience) is a subjective experience which is interpreted within a religious framework. The concept originated in the 19th century, as a defense against the growing rationalism of Western society. William James popularised the concept. Many religious and mystical...

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Social Effects Of Evolutionary Theory

Social Effects Of Evolutionary Theory The social effects of evolutionary theory have been considerable. As the scientific explanation of life’s diversity has developed, it has often displaced alternative, sometimes very widely held, explanations. Because the theory of evolution includes an explanation of humanity’s origins, it has had a profound impact on...

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The Order In The Universe And Creation According To The Torah

The Order In The Universe And Creation According To The Torah This article covers the relationship between the order in the universe and creation according to the Torah. The Creation of the Heavens and the Earth In the beginning, God created the heavens and the earth. Now the earth was...

Several major ideas about evolution came together in the population genetics of the early 20th century to form the so-called modern synthesis, including genetic variation, natural selection, and particulate (Mendelian) inheritance. This was at the time called neo-Darwinism.

Neo-Darwinism

Neo-Darwinism Neo-Darwinism is generally used to describe any integration of Darwin’s theory of evolution by natural selection with Gregor Mendel’s theory of genetics. It mostly refers to evolutionary theory from either 1895 (for the combinations of Darwin’s and Weismann’s theories of evolution) or 1942 (the “modern synthesis“), though it can mean any new Darwinian- and Mendelian-based theory...

Display on divination, featuring a cross-cultural range of items, in the Pitt Rivers Museum in Oxford, England.

Divination

Divination Divination (from Latin divinare “to foresee, to foretell, to predict, to prophesy “, related to divinus, divine), or “to be inspired by a god”, is the attempt to gain insight into a question or situation by way of an occultic, standardized process or ritual. Used in various forms throughout history, diviners ascertain...

The First Thanksgiving 1621, oil on canvas by Jean Leon Gerome Ferris (1863–1930). The painting shows common misconceptions about the event that persist to modern times: Pilgrims did not wear such outfits, and the Wampanoag are dressed in the style of Plains Indians.

Ritual

Ritual A ritual is a sequence of activities involving gestures, words, actions, or objects, performed in a sequestered place and according to set sequence. Rituals may be prescribed by the traditions of a community, including a religious community. Rituals are characterized, but not defined, by formalism, traditionalism, invariance, rule-governance, sacral symbolism, and performance. Rituals are a feature...

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Evolutionary Argument Against Naturalism

Evolutionary Argument Against Naturalism The evolutionary argument against naturalism (EAAN) is a philosophical argument asserting a problem with believing both evolution and philosophical naturalism simultaneously. The argument was first proposed by Alvin Plantinga in 1993 and “raises issues of interest to epistemologists, philosophers of mind, evolutionary biologists, and philosophers of religion”....

The Deluge (1840) by Francis Danby. Tate Gallery.

Genesis Flood Narrative

Genesis Flood Narrative The Genesis flood narrative is a flood myth found in the Tanakh (chapters 6–9 in the Book of Genesis). The story tells of God’s decision to return the Earth to its pre-creation state of watery chaos and then remake it in a reversal of creation. The narrative...

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The Quran And Scientific Discoveries

The Quran And Scientific Discoveries This article explores the Quran and scientific discoveries. There are many more verses in the Quran that are related to what we now call scientific facts. The existence of such verses indicates that man’s seeking of knowledge is a portion of Divine Mercy graciously bestowed...

Chinese Creation story

Chinese Creation Myths

Chinese Creation Myths Chinese creation myths are symbolic narratives about the origins of the universe, earth, and life. In Chinese mythology, the term “cosmogonic myth” or “origin myth” is more accurate than “creation myth“, since very few stories involve a creator deity or divine will. Chinese creation myths fundamentally differ from monotheistic traditions with one authorized version,...

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Superstition

What Is Superstition? Superstition is any belief or practice that is considered irrational or Supernatural: for example, if it arises from ignorance, a misunderstanding of science or causality, a positive belief in fate or magic, or fear of that which is unknown. It is commonly applied to beliefs and practices...

No Religion

Antireligion

Antireligion Antireligion is opposition to religion of any kind. It involves opposition to organized religion, religious practices or religious institutions. The term antireligion has also been used to describe opposition to specific forms of supernatural worship or practice, whether organized or not. Opposition to religion also goes beyond the misotheistic...

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Supernatural

Supernatural The concept of the supernatural encompasses anything that is inexplicable by scientific understanding of the laws of nature but nevertheless argued by believers to exist. Examples include immaterial beings such as angels, gods and spirits, and claimed human abilities like magic, telekinesis, and extrasensory perception. Historically, supernatural entities have been invoked to...

Cliff at the east of Siccar Point in Berwickshire, showing the near-horizontal red sandstone layers above vertically tilted greywacke rocks.

Uniformitarianism

Uniformitarianism Uniformitarianism, also known as the Doctrine of Uniformity, refers to the invariance in the principles underpinning science, such as the constancy of causality, or causation, throughout time, but it has also been used to describe invariance of physical laws through time and space. Though an unprovable postulate that cannot be verified using the scientific method, uniformitarianism has been...

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Holism

Holism Holism (from holos “all, whole, entire”) is the idea that systems (physical, biological, chemical, social, economic, mental, linguistic) and their properties should be viewed as wholes, not just as a collection of parts. The term holism was coined by Jan Smuts. Alfred Adler considered holism as a concept that represents all...