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[18] [19] An example widely used today to study the interplay of adaptation and speciation is the evolution of cichlid fish in African lakes, where the question of reproductive isolation is complex. [20] [21] Adaptation is not always a simple matter where the ideal phenotype evolves for a given environment.
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.
The adaptation may be physiologic (normal) or pathologic ... Thymus atrophy during early human development (childhood) is an example of physiologic atrophy.
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]
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.
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 ...
There are many environmental examples of sexual selection as an adaptive behavior; one popular example is sexual dimorphism. Sexual dimorphism is a morphological, phenotypic difference between males and females of the same species. [20] A common example of sexual dimorphism is difference in body size. [20]
Climatic adaptation refers to adaptations of an organism that are triggered due to the patterns of variation of abiotic factors that determine a specific climate. Annual means, seasonal variation and daily patterns of abiotic factors are properties of a climate where organisms can be adapted to.