How did these animals survive as a species for millions of years with this flip-over bug in their genes? Why hasn't evolution solved it, for example, by eliminating flip-prone individuals from the gene pool and giving better survival chances to those who can right themselves?
Evolution can’t compete with Joe Hollins
You're assuming natural selection selects for not flipping over, when in reality, it selects for the winner of the shell flipping contest as presumably without intervention, the flipped tortoise does not breed, while the winning tortoise does (or at least still has the opportunity to)