.jpg)
thumb|Black squirrel|Melanistic black [[eastern grey squirrel (Sciurus carolinensis)]] thumb|Melanistic guinea pigs (Cavia porcellus) are rare, and are used in rituals by Andean [[curanderos.]]
thumb|Black squirrel|Melanistic black [[eastern grey squirrel (Sciurus carolinensis)]] thumb|Melanistic guinea pigs (Cavia porcellus) are rare, and are used in rituals by Andean [[curanderos.]]
Melanism is the congenital excess of melanin in an organism resulting in dark pigment.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).