> Cancer does indeed occur in wild animals (...)
> Abstract:
> Certain environmental contaminants found in marine mammals have been
> shown to cause DNA damage and cancer. The micronuclei (MN), sister
> chromatid exchange (SCE) and/or chromosome aberration (CA) assays
> were used to assess baseline (spontaneous) levels of DNA damage
> in blood lymphocytes of individuals of the relatively healthy and lightly
> contaminated Arctic beluga whale
OK, but I would like to know if cancer (i.e. cancerous tumors, not just DNA
damage) can occur in a non-polluted environment.