Chihuahua born with no front legs thinks he's a kangaroo

Roo was born with just back legs and has to hop on them to get around. [Photo/CFP]

Roo is a 15-week-old Chihuahua, only a few inches tall. He was born with just back legs and has to hop on them to get around, which makes him think he's a kangaroo.

Put up for adoption at six weeks by a breeder who wasn't able to find him a home, Roo has amazed rescue workers by climbing stairs, jumping and running around.

Paula Knowles, 48, from Lancashire, England, took him in and at first even she agonized as to whether it would have been kinder to have him put down. But after seeing him bound happily around on his back legs she vowed to keep him.

Roo is only a few inches tall. [Photo/CFP]