"Fancy" usually refers to a specific type of rat, not hamster. Russian dwarf hamsters are a specific breed known for their smaller size and distinct appearance.
Do Russian dwarf hamsters run fast?
While they are smaller than Syrian hamsters, Russian dwarf hamsters are still quite agile and fast runners. They have a natural instinct to run on wheels and explore their environment. They can move quickly in bursts, especially when startled or excited.
However, their running speed may be slightly slower compared to larger hamster breeds. This is due to their smaller size and shorter legs.
Keep in mind that every hamster is an individual, and some may be naturally more energetic and fast than others.