American marten canadensis"), mountain lion ("Puma concolor"), fisher ("M. pennanti"), wolverine ("Gulo gulo"), grizzly bear ("Ursus arctos horribilis"), American black bear ("U. americanus"), and grey wolf ("C. lupus"). In northeastern Oregon, most predation (67%) occurred between May and August, and no predation occurred between December and February. The fur of the American marten is shiny and luxuriant, resembling that of the closely related sable. At the turn of the twentieth century, the American marten population was depleted due to the fur trade. The Hudson's Bay Company traded in pelts from this species among others. Numerous protection measures and reintroduction efforts have allowed
Paintbrush mass-produced handles are made of unfinished raw wood; better quality handles are of seasoned hardwood. The wood is sealed and lacquered to give the handle a high-gloss, waterproof finish that reduces soiling and swelling. Metal ferrules may be of aluminum, nickel, copper, or nickel-plated steel. Quill ferrules are also found: these give a different "feel" to the brush, and are staple of French-style aquarel wash brushes. Paintbrush A paintbrush is a brush used to apply paint or sometimes ink. A paintbrush is usually made by clamping the bristles to a handle with a ferrule. They are available in various sizes,