> It is apparent to me that no other species (ever) has been implicated in a mass extinction event. Not for lack of trying. Usually another species or the limi

> It is apparent to me that no other species (ever) has been implicated in a mass extinction event. Not for lack of trying. Usually another species or the limited size of its habitable area will stop a species before it has a global impact, but if you focus on smaller ecosystems, you get the typical rabbit-and-hare boom-and-bust cycle resulting in extinction of both fairly regularly.