Hemispheric specialization makes having a stroke on the left side of the brain more severe to recover from than on the opposite side.
Left hemisphere stroke :
When the blood flow towards the left hemisphere of the brain is reduced it causes a stroke. When the left side of the hemisphere gets a stroke it causes paralysis of the right side of the body. It affects the speech of the person. A person is not able to read, write, talk, walk, vision gets blurry, etc. This condition is severe and is not recoverable as it occurs in the left side of the brain. In severe cases, the person can go into a coma.
Learn more about left hemisphere stroke from here,
Based on the information provided within the question it can be said that the the Crabeater Seal's main source of food are Krill. These are a type of shrimp that can be found in cold water such as Antarctica. Despite the misleading name Crabeater Seal' do not eat crabs seeing as since the are no crabs in Antartica.
They show evidence of other life beyond us, when we see fossils they give is info that can determine other scientific data that is important for human life
