>It has been argued that analytic grammatical structures are easier for adultslearning a foreign language. Consequently, a larger proportion of non-native speakers learning a language over the course of its historical development may lead to a simpler morphology, as the preferences of adult learners get passed on to second generation native speakers. This is especially noticeable in the grammar ofcreole languages. A 2010 paper inPLOS ONEsuggests that evidence for this hypothesis can be seen in correlations between morphological complexity and factors such as the number of speakers of a language, geographic spread, and the degree of inter-linguistic contact <|endoftext|> Tribe elder Little Bush say sand tribe collapse tribe cave with fire sticks