Adaptations and mutations are not evolution or prove there of. Evolution is not a fact.
But nurse Milton, who is darker you or your Afro grandpa & how black was his grandpa

FACT: Australian snakes evolution in the last 10 years is very visible , reason is poisonous cane toad spreading, sneak heads a now much smaller

FACT 2: smart AU birds now peel of poisonous cane toads skin & then eat them, not like before
FACT 3: several other hunters, don't eat those toads any more , etc,........