It is estimated that one third of all song bird species are declining in the United States. If this pattern continues, people will eventually be forced to take sides on which animals existence is more important.
This is just one example Robert Wiese, Chief Life Sciences Officer at the San Diego Zoo, gives to illustrate the way humans interfere with the ebb and flow of animal populations. He discusses what happens when people introduce foreign species to an unfamiliar ecosystem with no natural predators and why it’s important to maintain checks and balances in populations.
If humans cause the decline in a species’ population, are they responsible to restore it? With success stories like the captive breeding program of the California Condor, we know that it is possible to save species from extinction. But at what cost?