Critics of the idea that the North American wild horse is a native animal, using only selected paleontological data, assert that the species, E. caballus (or the caballoid horse), which was introduced ...

Senate Bill 53 would classify bison as big-game wildlife, which would regulate the killing of the native species. Like it is ...

This enormous area of the Great Plains, Southwest, Pacific Northwest ... North American Indians shared their world with two types of buffalo (plains and wood), eight species of bear, three ...

competition and some localized extinctions of once native species in the Northwest and globally. Giannico said their models can be run on most species in the world. But for their recent study ...

A spawning redband trout from the Upper Klamath Basin. (Photo by Jonny Armstrong, courtesy of Oregon State University.) Some already threatened cold-water fish species in the Northwest will not only ...