The internet is awash in Barbie pink right now, but some shades of pink are only visible in UV light—like the bright pink glow in springhares' brown fur.
There are 2 species of these rodents (Pedetidae capensis and P. surdaster) found in southern Africa, & in Kenya & Tanzania. Both are biofluorescent; the colorful tints come from compounds called porphyrins.
Image: J. Martin and E. Olson, Northland College; from Olson et al. 2021, Scientific Reports
