Human brain folds are a highly evolved trait. Only mammals have evolved this ability and amongst them only cats, dogs, monkeys, dolphins and humans. Other animals and mammals like rats are still have their 'primitive' flat, unfolded brains.The folds in the brain of course have technical names.uman brain folds are a highly evolved trait. Only mammals have evolved this ability and amongst them only cats, dogs, monkeys, dolphins and humans. Other animals and mammals like rats are still have their 'primitive' flat, unfolded brains. The folds in the brain of course have technical names.
Depending on the type of your roof, geographic location, and the company or weekend warrior you choose to hire, the total installed cost of a composition shingles roof could vary between $2.75 to $7.50 per square foot installed.
HomeAdvisor's Cost Guide says the average national price of a roof installation for most Americans ranges from $5,913 to $7,853. At the high end, people pay as much as $12,000; at the low end, they may pay as little as $3,000.