Martha had never seen such a riot of colour. It took a moment for her to realise it had nothing to do with the clothes these aliens wore, because they weren’t wearing any.
She supposed they didn’t really need to, at least not for protection from the elements, since they were furry all over, but either they were born this way or they must paint or dye their fur somehow.
“Are those their, um, natural colours?” she asked in a whisper.
“No, they start out grey all over,” the Doctor explained. “The colours are so they can identify each other.”