Dogs communicate through various behaviors. Tail wags and head tilts express happiness and curiosity. Butt sniffing and circling before lying down are instinctive actions. Licking shows affection.

Mahone, a two-year-old, black, fluffy Newfoundland dog from Prince Edward Island, doesn’t know that he and other canine blood donors have saved the lives of fellow pooches that have needed ...

Stay up-to-date with the latest and best audio content from CBC Listen delivered to your inbox every two weeks.