Would another origin of life resemble Earth's biochemical use of amino acids? Here, we
review current knowledge at three levels:(1) Could other classes of chemical structure serve …

An ensemble is a collection of many similar things. It has been hypothesized that life could
have started with water filled vesicles formed from organic matter in meteorites, whose …

The mutation-selection mechanism of Darwinian evolution gives rise not only to adaptation
to environmental conditions but also to the enhancement of robustness against mutations …