Most living organisms experience predictable variation in environmental factors due to various geophysical cycles present on the earth. Cyclic variation in the environment presents opportunities and risks to organisms at ...

Due to Earth’s rotation about its own axis, environmental variables such as light, temperature and humidity undergo daily cycling. It is widely believed that such daily cycling in environmental variables has driven the ...

Organisms detect and respond to various sensory stimuli in the environment. Amongst several abiotic factors, appropriate temperature is crucial for optimal development, growth and reproduction of organisms, and plays a ...

Questions regarding certain behavioural programmes happen to be very intriguing. How do animals know when to sleep and when to forage? How do plants know when to change the orientation of their leaves towards the Sun? ...

Natural selection, as first independently conceptualized by Darwin (1859) and Wallace (Darwin and Wallace 1858), aimed to explain the evolutionary changes in biological populations by differential survival and reproduction ...

Life forms on the earth have to experience and cope with several diurnal and annual geophysical cycles such as light and temperature. It is believed that organisms have evolved mechanisms in order to accomplish the task ...

The Earth rotates around its axis creating alternate day/night cycles to which almost all organisms have adapted to create for themselves a distinct spatio-temporal niche (Pittendrigh, 1993; Sharma, 2003; Dunlap et al., ...

Circadian clocks are endogenous time keeping systems whose period is largely protected against changes in ambient conditions. Nevertheless, they can be fine-tuned by environmental time cues (Zeitgebers) in a way that the ...

Circadian clocks enhance the chances of survival of organisms living under periodic environment by enabling them to efficiently anticipate periodic events in their environment, because precisely and appropriately timed ...

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