Using ancient DNA analysis and other techniques, a research team led by conservation biologists at the University of California, Riverside has determined that bighorn sheep, so named for their massive spiral horns, became extinct on Tiburón Island, a large and mostly uninhabited island just off Sonora, Mexico, in the Gulf of California, sometime in the last millennium—specifically between the 6th and 19th centuries.
Originally posted here:
Bighorn sheep went extinct on desert island in Gulf of California, study finds