Assertion: holocene extinction | /r/HasProperty | two major pulses
Facets:
Source sentences:
text: The Holocene extinction is composed of two major pulses: one pulse 13,000 to 9,000 years ago, during the end of the last glacial period, when much of the Pleistocene megafauna went extinct, and a recent pulse, starting around 1950, when mass deforestation and other human activities have resulted in the extinction of many species.