Dog

The Dog or Domestic Dog, is an uncommon mammalian pet that are kept widespread around Antarctica and other different islands and states.

Origins
The origin of the dog are wayback than you might think. Since there are tons of dog species, Most of them date back to either the: 1000s, 1100s, 1200s, 1300s, 1400s, 1500s, 1600s, 1700s and the 1800s. Dogs evolved similar to monkeys and apes, as they evolved from a lemur-like structure as their early ancestors used to climb.

They soon evolved into a quadruped structure. They started to be domesticated as 'royal' pets by rulers, kings and queens. Soon they evolved into normal pets, and are uncommon pets as they're 2nd in the pet roster of POW (Pets of the World).