Elephants are much larger than humans and live for a similar length of time, yet they only rarely develop cancer. That is odd. Cancer, after all, is something of a numbers game: the more cells, the more replications. The more replications, the greater the likelihood of random dna damage and a cell going rogue, failing to be detected and ultimately starting the runaway process towards a tumour. Why elephants so rarely get cancer or is it because of their cellular defence ?

