When you picture a hunter from thousands of years ago, what do you imagine? For a long time, anthropologists thought men hunted while women gathered—but that assumption was likely wrong.

In 2018, archaeologists found an ancient hunting kit with weapons alongside the bone fragments of a woman in Peru. That prompted them to recheck findings from other burials. Their conclusion? Big game hunting between 8,000 and 14,000 years ago was actually gender neutral. A new review of existing research also supports that conclusion.

“It’s a natural thing to have assumptions,” researcher Sophia Chilczuk told The New York Times. “But it’s our responsibility to challenge those assumptions, to better understand our world.”