A pet cat traveled more than 100 miles and searched for over a month before finding its master's new home, the Hebei Daily reports.

When elderly married couple Guo Weilian and Zheng Ruxia moved from their rural home to live with their son in Langfang City this August, they had to leave Mimi, their pet cat, behind because the city council does not allow pets.

But the cat was very attached to the old couple and turned up on their doorstep one month later after traveling more than 100 miles.

"Guo loved the cat so much. He often washed it and picked the fleas out of its fur. He even climbed trees to rescue it when it got stuck. Mimi followed him everywhere," said Mrs Zheng.

"I used to cook fish soup for Mimi every day," said Mr Guo. According to Mrs Zheng, after they moved, every time they ate fish Mr Guo would say "We could give the leftovers to Mimi if she was here."

Then, on October 4, the couple's granddaughter found Mimi, thin and bedraggled, near the couple's new home. "At first I did not believe it. But when I called it, it jumped on me and licked my leg. Mimi was much thinner and dirtier after traveling such a long distance. We were all in tears," said Mr Guo.

Now, the cat has been back with his owners for two week, and is still following its master everywhere.

Knowledge tip: Cats' sense of smell

Cats have a very good sense of smell. Their olfactory organ is deep in the nasal cavity and has 20-40 square centimeters' space exposed to the air, three times more than in humans. Cats have more than 200 million olfactory cells and their sense of smell is comparable to that of a dog. They have been shown to be able to find their way home from about 37 miles away.