[souffle]

Hi there and welcome.
Firstly you need to separate them immediately as Syrian hamsters are solitary and must be kept alone. Eventually they will fight to the death. If you don't have another cage use a plastic storage box and a bowl for water. A pet shop should never have sold them to live together. If you can't house two separately then you would be best to return or rehome one of them. I can't really tell from the pics if Dale is male or female. Females come in to heat every 4th night and they will only mate then. Dale has quite long hair which is unusual even in long haired females as it's normally the males who have the long fluffy skirt. If you can see nipple lines up either side then you have a female. If Dale is a female then you need to have her on pregnancy watch. Gestation in syrians is only 16 days.