Sheep ideal research subjects, and thus are not a common model organism. They have, however, played an influential role in some fields of science. In particular, the Roslin Institute of Edinburgh, Scotland used sheep for genetics research that produced groundbreaking results. In 1995, two ewes named Megan and Morag were the first mammals cloned from differentiated cells. A year later, a Finnish Dorset sheep named Dolly, dubbed "the world's most famous sheep" in "Scientific American", was the first mammal to be cloned from an adult somatic cell. Following this, Polly and Molly were the first mammals to be simultaneously cloned and
The Marine Mammal Center United States Army built and operated over 265 Nike missile batteries throughout the United States. The best preserved installation is in the Marin Headlands, known as SF88. It was intended to protect local civilian and military populations against attack by Soviet bomber aircraft. It was opened in 1954, equipped with Nike Ajax missiles and later converted to hold improved Nike Hercules missiles. The site was decommissioned in 1974. Portions of the site, including three Nike Hercules missiles can be visited through the GG National Park Service on limited days and hours. The Marine Mammal Center opened in 1975, one year