Answer
Inhabiting freshwater environments, Caulobacter crescentus, an extensively studied bacterium by Moerner and colleagues, thrives in aquatic habitats such as rivers, streams, lakes, and ponds. As a versatile organism, it can adapt to diverse freshwater ecosystems, aiding in the decomposition of organic matter and nutrient cycling. Understanding the ecological roles and behaviors of Caulobacter crescentus in freshwater environments contributes to our knowledge of aquatic microbial ecology and ecosystem dynamics.