The “common weirdness generator” hypothesis seems quite off to me.
If the individual weird characteristics are independent as random variables, that would correlate with rareness of them occuring in a single species, which we do observe in this case.
If those weird characteristic were actually correlated, that would increase the likelihood of their cooccurance, and make creatures as weird as naked mole rats more common.
So, observation of uniqueness should lead us to believe that they are more likely to be uncorrelated.
The “common weirdness generator” hypothesis seems quite off to me.
If the individual weird characteristics are independent as random variables, that would correlate with rareness of them occuring in a single species, which we do observe in this case.
If those weird characteristic were actually correlated, that would increase the likelihood of their cooccurance, and make creatures as weird as naked mole rats more common.
So, observation of uniqueness should lead us to believe that they are more likely to be uncorrelated.