Do the duck eggs you buy from stores hatch if you keep them in the right tempauture?
No. Commercially sold eggs are not fertilised. Ducks & chickens that are used for egg production are not kept with male birds, and so they don’t get the opportunity to mate. If the birds are farmed privately however, it’s possible that they may be kept together with males. In this case though, unless the eggs are kept at the right temperature right from the beginning, they will not develop into chicks/ducklings. Considering that the eggs you buy are likely to be at least a couple of days old by the time you buy them, they’d have spent those two days in conditions that would not be suitable for a chick/duckling to develop.