AlbinismAlbinism is the congenital absence of melanin in an animal or plant resulting in white hair, feathers, scales and skin and reddish pink or blue eyes. Individuals with the condition are referred to as albinos. Varied use and interpretation of the terms mean that written reports of albinistic animals can be difficult to verify. Albinism can reduce the survivability of an animal; for example, it has been suggested that albino alligators have an average survival span of only 24 hours due to the lack of protection from UV radiation and their lack of camouflage to avoid predators.
Charles Darwin'Charles Robert Darwin' (ˈdɑrwɪn ; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a common ancestor is now generally accepted and considered a fundamental concept in science. In a joint publication with Alfred Russel Wallace, he introduced his scientific theory that this branching pattern of evolution resulted from a process he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.
GaneshaGanesha (गणेश, ), also spelled Ganesh, and also known as Ganapati, Vinayaka, and Pillaiyar, is one of the best-known and most worshipped deities in the Hindu pantheon and is the Supreme God in the Ganapatya sect. His depictions are found throughout India. Hindu denominations worship him regardless of affiliations. Devotion to Ganesha is widely diffused and extends to Jains and Buddhists and beyond India. Although Ganesha has many attributes, he is readily identified by his elephant head.
Flight featherFlight feathers (Pennae volatus) are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges ('rɛmᵻdʒiːz), singular remex ('riːmɛks), while those on the tail are called rectrices (rɛk'traɪsiːs), singular rectrix ('rɛktrɪks). The primary function of the flight feathers is to aid in the generation of both thrust and lift, thereby enabling flight.
OmOm (or Aum) (; ॐ, ओम्) is a symbol representing a sacred sound, syllable, mantra, and an invocation in Hinduism. Its written representation is one of the most important symbols of Hinduism. It is variously said to be the essence of the supreme Absolute, consciousness, Ātman, Brahman, or the cosmic world. In Indic traditions, Om serves as a sonic representation of the divine, a standard of Vedic authority and a central aspect of soteriological doctrines and practices.
Handicap principleThe handicap principle is a hypothesis proposed by the biologist Amotz Zahavi to explain how evolution may lead to "honest" or reliable signalling between animals which have an obvious motivation to bluff or deceive each other. It suggests that costly signals must be reliable signals, costing the signaller something that could not be afforded by an individual with less of a particular trait. For example, in sexual selection, the theory suggests that animals of greater biological fitness signal this status through handicapping behaviour, or morphology that effectively lowers this quality.
IridescenceIridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear to gradually change color as the angle of view or the angle of illumination changes. Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, and minerals such as opal. It is a kind of structural coloration that is due to wave interference of light in microstructures or thin films. Pearlescence is a related effect where some or most of the reflected light is white.
Mate choiceMate choice is one of the primary mechanisms under which evolution can occur. It is characterized by a "selective response by animals to particular stimuli" which can be observed as behavior. In other words, before an animal engages with a potential mate, they first evaluate various aspects of that mate which are indicative of quality—such as the resources or phenotypes they have—and evaluate whether or not those particular trait(s) are somehow beneficial to them. The evaluation will then incur a response of some sort.
Nanda EmpireThe Nanda dynasty was the fifth ruling dynasty of Magadha in the northern Indian subcontinent during the fourth century BCE and possibly also during the fifth century BCE. The Nandas overthrew the Shaishunaga dynasty, the previous ruling dynasty of Magadha in eastern India, and expanded the empire to include a larger part of northern India. Ancient sources differ considerably regarding the names of the Nanda kings and the duration of their rule, but based on the Buddhist tradition recorded in the Mahāvaṃsa, they appear to have ruled during 345–322 BCE, although some theories date the start of their rule to fifth century BCE.
Edicts of AshokaThe Edicts of Ashoka are a collection of more than thirty inscriptions on the Pillars of Ashoka, as well as boulders and cave walls, attributed to Emperor Ashoka of the Maurya Empire who reigned from 268 BCE to 232 BCE. Ashoka used the expression Dhaṃma Lipi (Prakrit in the Brahmi script: 𑀥𑀁𑀫𑀮𑀺𑀧𑀺, "Inscriptions of the Dharma") to describe his own Edicts. These inscriptions were dispersed throughout the areas of modern-day Bangladesh, India, Nepal, Afghanistan and Pakistan, and provide the first tangible evidence of Buddhism.
