Washington ? Americans are divided over whether humans and other living things evolved over time or have existed in their present form since the beginning of time, according to a new poll.

People on both sides of that argument think students should hear about various theories, however.

Nearly two-thirds of those in a Pew Research Center poll, 64 percent, say they believe “creationism” should be taught alongside “evolution” – a finding likely to spark more controversy about what is taught in the schools.

Forty-two percent of those surveyed held strict “creationist” views, while almost half, 48 percent, said they believed humans have evolved over time.

The poll of 2,000 adults was conducted July 7-17 and has a margin of sampling error of plus or minus 2.5 percentage points.