Species With Immune Systems Stronger Than Any Other Animal
Elephants
Despite having 100 times more cells than humans, elephants rarely develop cancer. Their DNA contains 20 copies of a tumour fighting gene called TP53, while humans possess only one copy.
When elephant cells become damaged, these extra genes trigger self destruction before mutations spread. Their size should make cancer common, but evolution gifted them extraordinary cellular protection that medical researchers eagerly investigate for human applications.
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