Evolution of Life and Intelligence: Life is thought to have originated around four billion years ago, but what form did it take? And what are the driving forces and mechanisms behind the evolution of life, just through mutation and natural selection, from unicellular to multicellular organisms, from water to land, and eventually to the human species? We will also look at the origins and evolution of the brain, the ultimate organ. Emotions such as anxiety, anger, and joy are caused by fluctuations of substances within the brain, and genes are deeply involved in such personality traits as curiosity and optimism. We will also touch on depression, schizophrenia, memory impairment, hallucinations, and other disorders of brain function. We will finish with a look at life from the even grander perspective of the origin and evolution of the universe, and consider the possibilities of extraterrestrial life forms and the future of life on Earth.