Then he should brush more often. But better looking tusks might kill him by attracting poachers.
I read recently they are seeing more and more Elephants growing up in the wild with no tusks.
It's a genetic mutation that causes more that do have it to survive and reproduce.
If poachers don't want redheads there will be more redheads.
Mother nature will adjust and compensate if we give her time, but time is a tough row to hoe against greed.