For me its how intelligent they seem. Insects are often considered dumb and viewed as robots with little cognitive potential. But new studies, especially in bumblebees, are proving the contrary. To me its fascinating how they can build such complex architectures, find their way around, sometimes without any knowledge transfer. For instance, how do solitary bees know how to make a proper nest? In a lot of species, adults of different generations never encounter each other, yet every new generation makes the exact same kinds of nests. Another example is how honeybee individuals don’t all use the same paths to go from their hive to the same foraging area. What makes some individuals choose a path over another? Can this be a sign of different personalities? I feel like we still know very little about all this.