Do these baby baboons undermine trendy gender-neutral theories about toys? Young female apes like to play with dolls and the males like trucks

An interest in gender-neutral toys has been steadily on the rise for years amid fears of reinforcing a societal male-female divide.

But a new BBC 2 documentary, Animals at Play, has revealed how differently the minds of the genders work, at least in baboons.

Filmmakers introduced lots of different toys to different animals and observed male baboons opting for trucks and planes while females seemed more interested in dolls.

One male baboon initially dashes over to a toy doll but quickly becomes disinterested and moves his attention to a shiny yellow plane.

Other male baboons also seemed to be more interested in 'active' toys and intrigued to work out how the wheels moved on toy trucks.

And for the first time ever, female baboons were spotted toting dolls around as though they were baby monkeys.