On my last post, I explained that chinchillas can't get wet, and so they take dust baths. These dust baths make their fur softer, but the one downside to them is they are extremely messy - there are always pawprints all over the wood floor after Cheech (my chinchilla) takes one! Cheech has black / dark gray fur with a white underbelly, but after his dust baths...
...he turns light gray! (And you can see the trail of dust he left behind him.)