“Over the past 400 years, the extinction rate for mammals appears to be between 17 percent and 377 percent faster than normal.” — Anthony D. Barnosky Copy Share Image
“In ordinary times—times here understood to mean whole geologic epochs—extinction takes place only very rarely, more rarely even than speciation, and it… — Elizabeth Kolbert Copy Share Image
“Over the past 400 years, the extinction rate for mammals appears to be between 17 percent and 377 percent faster than normal.… — Anthony D. Barnosky Copy Share Image
The extinction rate is so huge now, we're to the stage where we've got to set up recombinant ecologies. There are no… — Bill Mollison Copy Share Image
“Today, amphibians enjoy the dubious distinction of being the world’s most endangered class of animals; it’s been calculated that the group’s extinction… — Elizabeth Kolbert Copy Share Image
“background extinction.” In ordinary times—times here understood to mean whole geologic epochs—extinction takes place only very rarely, more rarely even than speciation,… — Elizabeth Kolbert Copy Share Image
