T H E A N N I H I L AT I O N
p6.2
O F N AT U R E Human Extinction of Birds and Mammals Gerardo Ceballos, Anne H. Ehrlich, and Paul R. Ehrlich
T H E A N N I H I L AT I O N
p6.2
O F N AT U R E Human Extinction of Birds and Mammals Gerardo Ceballos, Anne H. Ehrlich, and Paul R. Ehrlich