In 1975 there were still 250,000 lions. Today only 10%, or 25,000, remain. Statistics for many wild species are similar. For instance, about one third of the wild orangutans have vanished in just the last 10 years, and the populations of numerous song bird species in North America have declined by 70% to 90% since World War II. At the same time the world's human population has more than doubled since 1968. Coincidence?
Regardless of the reason or reasons, statistics make it obvious that many wild animals are headed for extinction. Some people are happy about it and others lament it, but it's happening with or without either group.