Follow my logic here: cancer occurs due to mutations in your cells. Elephants have A LOT more cells than people do. Therefore, elephants should have more cancer than people.
But they don’t. In fact, elephants have one of the lowest cancer mortality rates in the animal kingdom.
p53 heatshock proteins, known in some circles as the “Guardian of the Genome” (soon to be a Marvel movie I’m sure), are one of the key tumor suppressing genes. Humans have 2 genes for p53 proteins. Elephants have 38.
Read about it over at Slate!