Colombian weasel

The Colombian weasel (Neogale felipei), also known as Don Felipe's weasel, is a very rare species of weasel only known with certainty from the departments of Huila and Cauca in Colombia and nearby northern Ecuador (where it is only known from a single specimen). Both its scientific and alternative common name honours the mammalogist Philip "Don Felipe" Hershkovitz.

It appears to be largely restricted to riparian habitats at an altitude of 1,100 to 2,700 m (3,600 to 8,900 ft). There is extensive deforestation within its limited distribution within the northern Andes of Colombia and Ecuador, and with less than 10 known specimens, it is probably the rarest carnivoran in South America. It is considered vulnerable by the IUCN.

It is the second-smallest living carnivoran on average, being only slightly larger than the least weasel (Mustela nivalis) and slightly smaller than the stoat or ermine (M. erminea). The upperparts and tail are blackish-brown, while the underparts are orange-buff.

The species was formerly only known from specimens until the first photo of a living individual was taken in 2011 by an amateur naturalist who found one trapped in his parents' house; the weasel subsequently escaped to the outdoors. The image was uploaded to iNaturalist in 2018, where it gained widespread attention.