You can see the introduction to this series here. In this post we examine the evidence that mitochondria and chloroplasts are the descendants of free-living bacteria that entered into mutualistic relationships with eukaryotic host cells.
For the town of the same name in New South Wales, Australia, see Seaham, New South Wales. Seaham, formerly Seaham Harbour, is a small town in County Durham, situated 6 miles (9.7 km) south of Sunderland and 13 miles (21 km) east of Durham. It has a small parish church, St Mary the Virgin, with a late 7th century Anglo Saxon nave resembling the church at Escomb in many respects.
Stoneham is a town in Middlesex County, Massachusetts. Its population was 21,437 at the 2010 census, down from 22,219 in 2000. The town is the birthplace of Olympic figure skating medalist Nancy Kerrigan and is the home of the Stone Zoo. The earliest documented mention of the territory now called Stoneham dates to the year 1632, when on February 7 Governor Winthrop and his party came upon this area. They found Spot Pond and ate their lunch on a place they called Cheese Rock, now known as Bear Hill.