Tag Archives: endangered species

Our Very Own Mass Extinction

by | May 12, 2014

There have been five truly enormous mass extinctions in Earth’s geological history, events in which (as the BBC puts it) “abnormally large numbers of species die out simultaneously or within a limited time frame”. The one that wiped out the (non-avian) dinosaurs and many other creatures at the end of the Cretaceous Period tends to… Read more »