Zero's owner told Newsweek she adopted the tiny dog when he was six weeks old and weighed only one pound.

They knew exactly what to do!

Chihuahuas show a lot of affection and love to be close to their owners. Chihuahuas are a bold and energetic breed in the toy group. They’re devoted to their families and make for great lap dogs.

The animal shelter told the man that, as the runt of the litter, his adopted dog would not grow beyond nine pounds.