Magnificent British Oak out on the Norfolk Broads in NE England.
You can see exactly why so many British oaks were cut down for use by the Navy in the 14th through the 19th centuries. Each fork in the branches would, in varying sizes, yield what was called a “knee”. These were the naturally shaped, angled reinforcements used as bracing in wooden ship construction. The massive trunks gave the frames and planking. Smaller branches became the pegs to hold it all together.
Great photo from ForresterBushcraft on the Tumblr