I was not overwrought about the endangered spotted owl.
Species come and go by natural processes.
Now more disappear because humans did something to screw up their habitats. A new report says 225 species of animals and plants native to Delaware have gone extinct in the last century. We cannot take much comfort in the finding of other scientists that the same number goes extinct every day in the Amazon rain forest. That rain forest is one of the most biodiverse places in the world, and all living things depend on such places for oxygen to sustain life. The significance of the report on Delaware is not that the state has lost species in this century, or even that it lost that many or more in the previous 300 years.