The fascinatingly diverse detail of a rat’s bronchial epithelial surface. Long, hair-like structures, known as ciliated cells, are important for the bronchi’s self-clearing mechanisms.

of this substance, in albino rats, produced an orange-yellow pigmentation of the hair. It was then observed ... in a way which varies considerably from one rat to another, but nevertheless ...

But findings from a rat study published in the journal Nature in 2023 found that melanocytes may simply become concentrated at the follicle root of hair, no longer migrating up the strand to ...