Jamie Gustafson draws dinosaurs, sharks and pretty much anything else from the natural world. Some of his clients have ...

One less commonly known fact about T. rex is its intelligence. Its brain is more advanced than previously thought (see graphic). Scientists figure out how smart an animal is by measuring the ...

Made up of a complex network of cells called neurons, the brain is the body's most complicated organ, and also the most important. This massive ball of tissue inside your skull is responsible for ...