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. 2017 Nov 22;6:2041. [Version 1] doi: 10.12688/f1000research.12682.1

Table 1. Comparison of humans and elephants and parameters of relevance to cancer-free survival.

Species Humans Elephants
Average survival ~70 years 58 60–70 years 59
Number of pairs of
p53 copies 14 		1 1
Number of pairs of
p53 transgenes 14 		0 19
Cancer incidence 1:4 (US humans
by 85 years 60)		 ~0 14