Visitors pose for a photo with their pet dog during the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)

People and their pet dogs take part in the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)

Children play with a pet dog during the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)

A pet dog wearing goggles poses for photos during the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)

Pet dogs play together during the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)

A woman puts her pet dog in a picture frame for photos during the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)

People and their pet dogs take part in the 2020 Party 4 Paws event in a park in Toronto, Canada, on Aug. 30, 2020. As a family-friendly event, the pet fair drew hundreds of visitors with their pet dogs on Sunday. (Photo by Zou Zheng/Xinhua)