wildzzz 15 hours ago

I've always wondered if simply observing people like this changes their behavior.

  • ljf 12 hours ago

    We know that surveying teenagers about alcohol, drugs and sex makes them more likely to report that they have drunk, taken drugs and had sex in future surveys.

    The question is we're they lying the first time, the 2nd time or did their behaviour actually change.

  • ycombiredd 15 hours ago

    I've never wondered until now wtf is infant-directed song?

    • ycombiredd 15 hours ago

      oh oh! as in directed at lol.. sorry, it's early... I had visions of... nevermind.

      • aaronbrethorst 14 hours ago

        I originally had the same thought. Toddlers will definitely make you invent songs, but it seems a little early for younger cohorts.

      • kgwxd 13 hours ago

        Greendale Babies?

      • olddustytrail 12 hours ago

        See, you think babies are just waving their arms, but they're actually conducting!

romaaeterna 14 hours ago

The Northern Aché have lost the ability to make fire and instruments, per Table 1.

  • Noumenon72 13 hours ago

    That table also answers the question I was asking all the way through, "How do you know whether they lost singing to infants or never had it?" They split off from the Southern Ache, who still do it.