* The Alapaha Blue Blood Bulldog: This breed, known for its muscular build and blue-gray coat, is believed to have gone extinct in the 1970s.
* The English White Terrier: A small, white terrier breed that was popular in the 1800s, the English White Terrier is thought to have vanished around the beginning of the 20th century.
* The Pyrenean Mastiff: This massive breed, which was used to guard livestock in the Pyrenees Mountains, is believed to have gone extinct in the 19th century.
* The Talbot Hound: A breed renowned for its speed and hunting ability, the Talbot Hound is thought to have become extinct in the 18th century.
* The Mexican Hairless Dog: Although this breed is still around in some regions, there is evidence of a distinct Mexican Hairless dog that became extinct, possibly due to Aztec rituals.
It's worth noting that some breeds are considered "functionally extinct," meaning that there are so few individuals left that they can no longer sustain a viable breeding population. This is the case for breeds like the Norwegian Elkhound and the Dingo.
The loss of these breeds is a reminder of the importance of conservation efforts and the impact that human actions can have on animal populations.