A tiny neural network is sufficient to control the daily rhythm of the fruit fly, Drosophila melanogaster. Researchers at the University of Würzburg have shown that only four specialized nerve cells are necessary to drive the animals' endogenous clock.
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It is highly likely that the female menstrual cycle was originally synchronized with the lunar cycle. This has changed significantly with the rise of artificial light and smartphones, as a new study by the University of Würzburg shows.
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The behavior of Antarctic krill not only reacts to external environmental influences such as light or food. It also uses its internal clock to adapt to the extreme conditions of the polar environment.
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