zlacker

Here's one study that tried to eliminate that variable, by using rhesus monkeys:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2583786/

>>gagany+(OP)
Thank you! I have to say, I find the gender-neutral toy layout here in CA stores very annoying when I go shopping for children's toys. It's bizarre to me that the state has mandated it, and I was really disappointed when Newsom glossed over this question in his interview with Maher last week.