"By chance or adaptive arrangement, a turtle nest is safe from most natural enemies during the greater part of the ~50 to ~60 day incubation period. The egg eaters are a menace while the eggs are being laid and for a day or two afterwards. After that however there follows a peaceful period when no animal seems to be able to locate turtle eggs in the nest."

Note: If this had not been the case then various animals, some long ago extinct, would have  extirpated the sea turtle 100 million years ago.