Men are tough; women are in touch with their feelings. Men are providers; women are nurturers. Men should punch back when provoked; women should be physically attractive.

These stereotypical beliefs about gender differences remain strong, found a new survey from the Pew Research Center on Tuesday. Even in an era of transgender rights, a surge of women running for office and a rising number of stay-at-home fathers, most Americans believe men and women are fundamentally different, and that masculinity is more valued than femininity.

The workplace is the one area in which a majority of men and women said the sexes were more alike than different in terms of what they were good at: 63 percent of respondents said men and women excelled at the same things at work, while 37 percent said they were good at different things.

The survey results also shed light on some root causes of sexual harassment and discrimination. Nearly half of men, and 57 percent of men ages 18 to 36, said they felt pressure to join in when other men talked about women in a sexual way.