Human Brain Evolution

John Parrington draws on the latest research on the human brain to show how it differs strikingly from those of other animals in its structure and function at a molecular and cellular level. And he argues that this 'shift', enlarging the brain, giving it greater flexibility and enabling higher functions such as imagination, was driven by tool use, but especially by the development of one remarkable tool - language.

Humans are awesome. Our brains are gigantic, seven times larger than they should be for the size of our bodies. The human brain uses 25 percent of all the energy the body requires each day. And it became enormous in a very short amount of time in evolution, allowing us to leave our cousins, the great apes, behind. So the human brain is special, right? Wrong, according to Suzana Herculano-Houzel. Humans have developed cognitive abilities that outstrip those of all other animals but not because we are evolutionary outliers.

It is widely understood that Charles Darwin’s theory of evolution completely revolutionized the study of biology. Yet, according to David Sloan Wilson, the Darwinian revolution won’t be truly complete until it is applied more broadly—to everything associated with the words “human,”...

Many of us know people whom society and doctors would consider personality disordered or mentally ill. We often use these labels for diagnoses and treatment. Sometimes the labels aren't accurate due to difficulties in testing for disorders and due to the differing views of the physicians and psychoanalysts. But are these people really disordered after all? Is there truly a normal personality that exists, and if it does exist - what is it?

Are you bombarded by a constant media feed of global terrorism, war, and rising unemployment rates—and by a mind-numbing array of ads that urge you to “ask your doctor” about the newest anti-anxiety medications? If it sometimes feels as if this country is having a collective anxiety attack...

Are you bombarded by a constant media feed of global terrorism, war, and rising unemployment rates—and by a mind-numbing array of ads that urge you to “ask your doctor” about the newest anti-anxiety medications? If it sometimes feels as if this country is having a collective anxiety attack...