Many furry friends have enjoyed having their humans at home during the pandemic. Dogs may also be lending a paw to help detect COVID-19. Nature reports on a November 2020 online meeting of the International K9 Team to share preliminary research on dogs' ability to accurately sniff out COVID-19 infections in humans. The article reviews a few promising studies on the subject, identifies research gaps and the need for more large-scale studies, and considers both the risks and rewards of using dogs to detect COVID-19. In the Sense of Wonder section of the article, readers will find a brief summary of how testing works. For readers looking for more information, the References section has a link to a paper published in the open-access journal BMC Infectious Diseases, which details a pilot study from the University of Veterinary Medicine Hannover in Germany.