What about 'Raw diets aren't guaranteed to cure or prevent cancer' ?
Sure. I never thought instinctive raw paleo nutrition would make me bulletproof against cancer! We all have eaten cooked junk for years and perhaps (just like asbestos) it can cause a cancer decades latter. Also we can't totally avoid ingesting some carcinogen that are present everywhere in our environment - air, water and food. Nicole ate cooked food, dairy and wheat till she was about 25. Lately she was in disagreement with her husband about certain points; finally she ate beef, and beef, almost exclusively beef everyday for several years and in the end (when she new having cysts) she took supplements based on milk - I also strongly suspect she ended by eating junk (photo eating pie)...
Under raw paleo instinctive nutrition, several people had their cancer self-healed, but the reverse thing can also happen sometimes - especially in cases of cooked exceptions or/and unbalanced nutrition due to psychological problems /failed love relationships.
From your link:
The study suggests links between wildlife cancers and human pollutants, as well. For example, beluga whales in the St. Lawrence River system have an extraordinarily high rate of intestinal cancer — it is their second leading cause of death. One kind of pollutant in the waters, called polycyclic aromatic hydrocarbons, is known to cause cancer in humans. The compounds are suspected carcinogens for beluga whales as well. Fish in other polluted waterways, including brown bullhead catfish and English sole, also exhibit high levels of cancer.
Also, about cancer cases in wild animals, we should not forget that the human observer is not conscious of disturbing the observed animals, especially by leaving cooked leftovers and junkfood that the animals may feed on. Plus, these animals may have seen their environment degraded, confined or have been displaced by human presence around them.