Every year, in Australia alone, an estimated 18,000 healthy greyhounds are killed because they don't run fast enough. In the U.S., where there are still over 20 greyhound racing tracks in operation, the numbers are hard to track, but the ASPCA compiled some numbers from 2008 to 2015, during which there were 11,722 greyhound injuries and 909 deaths.
"The true number of deaths is likely higher as there are no verifiable statistics on the ultimate fate of Greyhounds who survive racing but are disposed of each year when injured or no longer competitive," the ASPCA wrote.
But there are things you can do right now to help greyhounds. Even just sharing the sad fate of many racing greyhounds with your family and friends can help their plight, Dieppe said.