Cancer proof animals?

[TransformerRobot]

Are there animals that have genes for avoiding cancer?

 

If so, what are they?

 

Iota said the naked mole rate was one of them, but is it really?

[CharonY]

There is something to it with respect to the naked mole rat, but it is outside of my expertise. However it does not appear to be a simple genetic connection. Instead, unusual hyaluronans appear to be related to their resistance to cancer (see Tian et al. 2013 Nature doi:10.1038/nature12234).

 

Also note that the genes implicated in cancer are part of the normal genetic system of the organism. If a genetic link is assumed, the absence of genetic element could as likely reduce cancer risk as the presence of one.

[Lattima]

I believe that there is a species of tropical fish whose brain naturally makes an effective anti-carcinogen, however, its name eludes me...