These are Indo-European, Bantu, Austronesian (from South-East Asia and the Pacific) and Uto-Aztecan (the native vernaculars of the Americas).

ECONOMIST: The evolution of language: Babel or babble? | The

For their studies, the team studied the characteristics of word order in four language families: Indo-European, Uto-Aztec, Bantu and Austronesian.

BBC: Language universality idea tested with biology method

Split into two sections, "Philippines: An Archipelago of Exchange" explores both the archipelago's diverse Austronesian roots in its mountainous regions and its rich maritime history as a Pacific trading hub.

WSJ: Review: Island Treasure | 'Philippines: An Archipelago of Exchange' at the Mus��e du Quai Branly in Paris