Bees are one of the most loving creatures on earth, and they would even be willing to share a living space with the monsters that live in your cold, dark basement. How loving are they? Bees may often nest inside basements because they find these spaces reasonably comfortable living environments for their queen.
If you see any dead bees and no active hive, there’s a chance that there is a hidden hive nearby. Some species of bees, like bumblebees and honeybees can nest in cracks and gaps in basements.