Rob Kugler, a former marine from Nebraska, was devastated when he learned his dog, Bella, had terminal cancer.
The chocolate lab was diagnosed with osteo-sarcoma - cancer of the bones - in May 2015, and the decision was taken to amputate her front left leg.
"If you don't want to take the leg," the vet told Rob, "you should put her down today, because she's in so much pain. However, it won't save her, because the cancer is in her lungs, and you're looking at three to six months."
However, 14 months on Bella is still going strong - and recently embarked on her second long-distance trip around the US.
