Given that animals can also get skin cancer from excessive sun exposure, I think your basis for this belief is flawed. Also not burning in the sun doesn't indi

Given that animals can also get skin cancer from excessive sun exposure, I think your basis for this belief is flawed. Also not burning in the sun doesn't indicate anything, not everyone gets sunburn and it doesn't mean your skin cells DNA are not being damanged and increasing the chance of cancer. Prehaps more relevant to modern life is the ozone layer was vastly stronger in the past which filtered out the damaging frequencies. Stay out the sun!