Chance is a factor in the survival of species

In a major study, biologists at Lund University in Sweden have studied the role of chance in whether a species survives or dies out locally. One possible consequence according to the researchers, is that although conservation initiatives can save endangered species, sometimes chance can override such efforts. Species that differ considerably in their ecology rarely have problems living in close proximity as they do no compete for the same natural resources. When, however, two similar species li