I wouldn’t say “like”, but I can appreciate the imagination...
To my limited knowledge it seems mankind just avoided the heck out of any radiation sources on Earth since, naturally, the area would cause huge unexplainable deadly mutations.
Radiation sickness may have been conflated with leprosy. They wouldn’t have understood either disease.
To continue our conversation just a bit with an example;
If a radiation-caused mutation arose in a group it would be (maybe) thousands of years before it became predominant. Today’s researchers would have no evidence to go on to tell whether the new DNA was from another group or not... absent ruins, monuments, art or other physical evidence.
And 50 thousand years ago we didn’t leave much that lasted.