It's "center hole" 
There are a few non-sense mutations that stick around, like the laryngeal nerve, which reaches a ridiculous round trip length on a giraffe.
But most, as I pointed out on a paper from '94, will disappear within, at most, 80 generations.... that is if the mutation isn't that much non-sense that it prevents mating.
Now, given that very few individuals from any population get that mutation and couple that with the odds of any given animal to become a fossil, how likely do you think it will be for us to find a non-sense fossilized individual, instead of a "normal" individual?
There are a few non-sense mutations that stick around, like the laryngeal nerve, which reaches a ridiculous round trip length on a giraffe.
But most, as I pointed out on a paper from '94, will disappear within, at most, 80 generations.... that is if the mutation isn't that much non-sense that it prevents mating.
Now, given that very few individuals from any population get that mutation and couple that with the odds of any given animal to become a fossil, how likely do you think it will be for us to find a non-sense fossilized individual, instead of a "normal" individual?
