I’m a super new newbie, and I’m sorry if this if a dumb question. We have had our bees (from nucs) for about a month. Recently we have noticed new, smaller bees (maybe even darker?) in the hive (especially outside hanging together as a group crawling on the entrance and area around it). I had just assumed they were “baby” bees. But then I did some searching, and found that bees are born full size. So what is going on and do I need to be as worried as I am???