There's some bonds between animals that just can't be explained. And there's no real explaining what's going on with the ...

"I didn't see him at first. Nobody gets left behind," one user said. Another added: "I am howling! Oh God he looks quite ...

Jack Russell terriers weigh between nine and 15 pounds and stand about 10-12 inches tall. As one of the highest-jumping dog breeds, they can jump up to five feet — more than five times their size.