| The Siberian weasel also known as the Siberian mink or kolinsky is the most common among Asian mustelids. |
| Europeans arrived in the early 1800s, bringing with them mustelids, cats, and two more species of rats. |
| Predators of erethizontids include mustelids such as martens, minks, wolverines, ermine, weasels, and fishers. |
| Molar polymorphism is probably a primitive mammalian character, conserved in marsupials and mustelids. |
| Like other mustelids, fishers have a high metabolic rate and are ravenous eaters. |
| Two new extinct species are named and two of the mustelids may represent extinct new species as well. |
