Your Dog Is a Secret Weapon in the Fight Against Cancer Jellybean continues to defy expectations. The 5-year-old Labrador retriever mix jumps up and down from her favorite spot on the couch and walks around the living room with such ease, it’s as if she hadn’t ever had metastatic cancer. Her owners, Patricia and Zach Mendonca, still can’t quite believe the miracle. “She’s got a little bit more of a tug to her step,” Patricia says.Jellybean was diagnosed with bone cancer in her hind leg almost three years ago. Despite amputation and chemotherapy, the cancerous cells quickly spread through her blood to her lungs, as they do in 90 percent of cases in dogs. Survival time at this stage averages two months. “We didn’t have any hopes of curing her,” says Patricia. “We were pretty devastated.”
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