an extinction or biotic
crisis
large-scale mass extinctions
marine ambivalence
in a geologically short
percent
large-scale major mass extinctions have
significantly used the Earth
more
large-scale
mass extinction rates;
a biologically short ride, as they say
microbial plant spectral measurements
estimates low
before
threshold chosen for Earth such
an extinction
or biomass extinction
rate of animal, lovely abundance
like a gun