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.
Average Cost Per Square. While the cost of concrete roof tiles varies by region, manufacturer or other factors, you can expect to pay between $310 and $500 per square installed, according to a 2014 article on BobVila.com. This figure is roughly half the cost of clay roofing, which costs $700 to $1,000 per square.