Meet Tuco!
Just nine weeks old at the time this photo was taken in July, this German Shepherd is a prospective K-9 officer with Boston police.
Massachusetts Vest-a-Dog provides equipment such as bulletproof vests to protect the dogs that keep us safe.
Boston police have received 26 K-9 vests from the organization since 2000 and are seeking donations to help keep the program alive.
Anyone who would like to help Massachusetts Vest-a-Dog protect animals like Tuco can buy calendars to support the organization. Find out more here.