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Desert greening. Desert greening is the process of afforestation or revegetation of deserts for ecological restoration ( biodiversity ), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life. The term "desert greening" is intended to apply to both cold and hot arid and ...
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Charles Darwin popularised the term "natural selection", contrasting it with artificial selection, which is ...
Evolutionary biology is the subfield of biology that studies the evolutionary processes ( natural selection, common descent, speciation) that produced the diversity of life on Earth. It is also defined as the study of the history of life forms on Earth. Evolution holds that all species are related and gradually change over generations. [1]
v. t. e. Herbert Spencer (27 April 1820 – 8 December 1903) was an English polymath active as a philosopher, psychologist, biologist, sociologist, and anthropologist. Spencer originated the expression "survival of the fittest", which he coined in Principles of Biology (1864) after reading Charles Darwin 's 1859 book On the Origin of Species.
Hinduism portal. v. t. e. Ayurveda ( / ˌɑːjʊərˈveɪdə, - ˈviː -/; IAST: ayurveda) [1] is an alternative medicine system with historical roots in the Indian subcontinent. [2] It is heavily practiced in India and Nepal, where around 80% of the population report using ayurveda. [3] [4] [5] The theory and practice of ayurveda is ...
Aristotle's biology. Among Aristotle's many observations of marine biology was that the octopus can change colour when disturbed. Aristotle's biology is the theory of biology, grounded in systematic observation and collection of data, mainly zoological, embodied in Aristotle 's books on the science. Many of his observations were made during his ...
The term guild is a broad term to describe the relationship between different species using the same resource. Since it is difficult to classify a guild it can be broken down into two more specific categories, alpha guilds and beta guilds. Alpha guild is specifically related to species that share a resource used within the same community. [10]
December 28 – Endangered Species Act signed into law in the United States. Cartography. Waldo R. Tobler introduces the Tobler hyperelliptical projection. Chemistry. A successful method of Vitamin B 12 total synthesis is reported by the groups of Robert Burns Woodward and Albert Eschenmoser. Computer science