Posted March 21, 2019
Male fertility has been on the decline for at least 40 years, with a 50 percent global reduction in sperm quality noted from 1938 to 2011.1 A similar decline in sperm quality has been observed in dogs living in human households, with sperm motility declining by 30 percent over a 26-year period.2 The corresponding declines suggest that something in the environment, and likely in our homes, could be causing the drop in fertility among both dogs and people. Read more.