The San Clemente Island goat is a type of domestic goat derived from feral goats isolated on San Clemente Island, one of the Channel Islands of California. (en.wikipedia.org)
Intensive selective breeding over the past 200 years and high extinction rates among feral populations has greatly reduced the genetic diversity present in domestic goat breeds. (sciencedaily.com)
They took the skulls of recently killed domestic goats and attached a series of strain gauges to measure the force being applied to each of the bony plates that make up the skull. (newscientist.com)