Where can I find more statistics about pet overpopulation and the impact of spay/neuter surgeries?
Spay USA provides statistics, abstracts from research articles, and survey data about animal overpopulation, euthanasia, and the impact of spay/neuter services on the Spay USA website. This is a very good resource for reliable data on these topics. The National Council on Pet Population and Study also has a wealth of data on animal populations.