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Individuals and households play a central role in adaptation. There are many examples particularly in the global south. Behavioural adaptation is a change in the strategies, practices and actions that help to reduce risk. These can include protecting homes from flooding, protecting crops from drought, and adopting different income-earning ...
This special adaptation is now recognized as an example of natural selection in action. [6] The adaptation of the Tibetans is the fastest known example of human evolution, as it is estimated to have occurred between 1,000 BCE [7] [8] [9] to 7,000 BCE. [10] [11]
Mimicry is thus an anti-predator adaptation. A common example seen in temperate gardens is the hoverfly (Syrphidae), many of which—though bearing no sting—mimic the warning coloration of aculeate Hymenoptera (wasps and bees). Such mimicry does not need to be perfect to improve the survival of the palatable species. [67]
Origins of heat and cold adaptations can be explained by climatic adaptation. [16] [17] Ambient air temperature affects how much energy investment the human body must make. The temperature that requires the least amount of energy investment is 21 °C (70 °F). [5] [disputed – discuss] The body controls its temperature through the hypothalamus.
The adaptation of humans to high altitude is an example of natural selection in action. [2] High-altitude adaptations provide examples of convergent evolution, with adaptations occurring simultaneously on three continents.
A child born with cerebral palsy will most likely have a form of hemiparesis or hemiplegia (the weakening, or loss of use, of one side of the body). In order to adapt to one's environment, the child may use these limbs as helpers, in some cases even adapt the use of their mouth and teeth as a tool used for more than just eating or conversation.
Neural adaptation or sensory adaptation is a gradual decrease over time in the responsiveness of the sensory system to a constant stimulus. It is usually experienced as a change in the stimulus. For example, if a hand is rested on a table, the table's surface is immediately felt against the skin.
Local adaptation is a mechanism in evolutionary biology whereby a population of organisms evolves to be more well-suited to its local environment than other members of the same species that live elsewhere. Local adaptation requires that different populations of the same species experience different natural selection. For example, if a species ...