there are studies sponsored by people with an agenda, yes. they want to normalize racism so they create tests that support their beliefs ( see conspiracy theory). it was posted that a toddler would hang with other races or hug a lion unless they were taught differently. one normalized rule parents teach their kids is to not touch dead things. kids will inevitably examine a dead critter- usually handling it if its a critter they were taught not to fear unless parents teach their kids not too. there are few things that humans instinctively understand to be dangerous. one is height and falling, but rapidly approaching objects also makes the list. spiders? ive seen few babies that wont pick one up when they see one- same as snakes. predators? i think these are all learned. id say the list lacks being physically engaged by strangers because babies do cry when a well meaning stranger such as a new family member engages too closely or tries to pick them up.
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