Probable Occurrence Of A Brown Bear (Ursus Arctos) In Sonora, Mexico, In 1976

Measurements taken on the skull of a bear shot in northern Sonora, Mexico, in 1976 revealed that the skull is from a brown bear (Ursus arctos). The skull appears to be that of a juvenile (sex unknown) and, to our knowledge, represents only the fourth confirmed record of a brown bear from Sonora, although anecdotal accounts exist from the mid-1800s to early 1900s. The present record also establishes that brown bears, considered extirpated from Mexico since the 1960s, were present in Sonora within the past 30 years.

Authors

Juan Pablo Gallo-Reynoso, Thomas Van Devender, Ana Lilia Reina-Guerrero, Janitzio Egido-Villarreal, Edward Pfeiler

Date Published or Written

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