The Colombian weasel is probably the rarest carnivore in South America.
Virtually nothing is known about the distribution, status or ecology of [Mustela felipei]. As of 1996 only five specimens of the Colombian weasel were known. Three of them were originally mis-labled as the long-tailed weasel, [Mustela frenata]. The Colombian weasel has been identified as a separate species since 1996.