component, i.e., the use of human-made structures, such as buildings or cities, is to be emphasized, then one can speak ofenvironmentalsynanthropism (O’Connor2013), although this does not preclude synanthropic animals from falling into both categories. Another difference between synanthropism...
So far, the science of the RHZ is unproven. But that's not deterring these intrepid researchers. As they say in the introduction: "In common with much of the work in the exoplanet field, we rely throughout on assumptions which are difficult if not impossible to test and present some plo...