"Our work is pointing us to a biological explanation."

But in the 1920's, biological explanations for group differences became taboo.

I suspect not: biological explanations for human action tend to focus on women.

In many such debates, doctors demand a biological explanation for a therapy's benefits.

Depression has a biological explanation to why people lose hope in life.

But egalitarian feminists tend to play down the value of biological explanations.

Near death experiences appear to have a biological explanation, research suggests.

While several environmental, behavioral, and biological explanations for this pattern have been proposed, as yet, the reason is unknown.

Throughout most of the 20th century, social and biological explanations were widely viewed as incompatible.

She was frowning, obviously expecting a biological or natural explanation.