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Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
A 1930s exhibit by the Eugenics Society.Some of the signs read "Healthy and Unhealthy Families", "Heredity as the Basis of Efficiency" and "Marry Wisely".Eugenics (/ j uː ˈ dʒ ɛ n ɪ k s / yoo-JEN-iks; from Ancient Greek εύ̃ (eû) 'good, well' and -γενής (genḗs) 'born, come into being, growing/grown') [1] is a set of beliefs and practices that aim to improve the genetic quality ...
Human female mating competition is complex and multifaceted and varies across cultures, societies, and individuals. [94] Females may compete for high-quality mates who possess traits that indicate underlying genetic quality, possibly including physical attractiveness and intelligence, [ 95 ] or material resources that can enhance the survival ...
Slave breeding was the practice in slave states of the United States of slave owners systematically forcing slaves to have children to increase their wealth. [1] It included coerced sexual relations between enslaved men and women or girls, forced pregnancies of enslaved women and girls due to forced inter inbreeding with fellow slaves in hopes ...
U.S. eugenics poster advocating for the removal of genetic "defectives" such as the insane, "feeble-minded" and criminals, and supporting the selective breeding of "high-grade" individuals, c. 1926 In the Deep South , women's associations played an important role in rallying support for eugenic legal reform.
Sexual selection creates colourful differences between sexes in Goldie's bird-of-paradise.Male above; female below. Painting by John Gerrard Keulemans.. Sexual selection is a mechanism of evolution in which members of one sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual ...
We've all seen the story, and we know how it goes: a young model finds herself staring down the barrel of 27, the age at which the fashion industry ties models to trees and gives them the Old ...
The racial ideology of Nazism placed the biological improvement of the German people by selective breeding of "Nordic" or "Aryan" traits at its center. [1] These policies were used to justify the involuntary sterilization and mass-murder of those deemed "undesirable".