New Data Shows Increase in Number of Pets Killed in U.S. Shelters for the First Time in 5 Years 2 years ago Related News The Psychological Impact of Forced Human-Pet Separation... When Does My Pet Need a Veterinary... Dogs in yellow coats may have anxiety... Warning pet owners could be overpaying for... New study examines origins of toxic bacteria... The data collected by Best Friends shows pets killed by the U.S. shelter system increased from 347,000 to 355,000 in 2021.