Singing the Individual: Name Tunes in Oyda and Yopno.

Music beats spoken language in identifying individuals uniquely in two disparate communities. In addition to their given names, which conform to the conventions of their languages, speakers of the Oyda (Omotic; SW Ethiopia) and Yopno (Finisterre-Huon; NE Papua New Guinea) languages have "name tunes," short 1-4 s melodies that can be sung or whistled to hail or to identify for other purposes. Linguistic given names, for both communities, are often non-unique: people may be named after ancestors or contemporaries, or bear given names common to multiple individuals.

The Preference for Pointing With the Hand Is Not Universal.

Pointing is a cornerstone of human communication, but does it take the same form in all cultures? Manual pointing with the index finger appears to be used universally, and it is often assumed to be universally preferred over other forms. Non-manual pointing with the head and face has also been widely attested, but it is usually considered of marginal significance, both empirically and theoretically. Here, we challenge this assumed marginality.

Uphill and Downhill in a Flat World: The Conceptual Topography of the Yupno House.

Speakers of many languages around the world rely on body-based contrasts (e.g., left/right) for spatial communication and cognition.

Misconceived causal explanations for emergent processes.

Studies exploring how students learn and understand science processes such as diffusion and natural selection typically find that students provide misconceived explanations of how the patterns of such processes arise (such as why giraffes' necks get longer over generations, or how ink dropped into water appears to "flow"). Instead of explaining the patterns of these processes as emerging from the collective interactions of all the agents (e.g.