Digital illustration of bare deciduous tree branches. In the Northern Hemisphere, deciduous trees grow new leaves each Spring and lose their leaves each Autumn. Many trees have bare branches during the Winter months.
The continent of North America is located in the northern hemisphere and includes Canada, the United States, Mexico, the nations of Central America, Greenland, and the Caribbean Islands.
Researchers report on three years of behavioral and brain imaging tests on a nearly seven year-old boy -- 'UD' -- who had a third of the right hemisphere of his brain removed in an attempt to control seizures. ...
Science Daily. Wed, 01 Aug 2018 11:53:05 EDT.