. Elephants have a larger number of TP 53 proteine ( cancer fighting proteine ) then human. http://www.latimes.com/science/sciencenow/la-sci-sn-elephant-cancer-story-20151007-story.html
From article: "The important suggestion of this study is that additional copies of TP53 are enough to prevent elephants from getting cancer,” said Graham, who was not involved in the JAMA study. “The implication for humans is that reinforcing the protection offered by TP53 would be enough to prevent our own cells from becoming cancerous.” Schiffman said his team would like to take what it learned from elephants and use it to help people with cancer. One possibility is to create a drug that mimics the actions of TP53. Another thought is to insert more TP53 genes into precancerous cells. “Evolution has had 55 million years to figure this out,” he said. “We want to learn how to take advantage of that.” This is amazing news! Thanks for posting it.