evolution of language
Numbers are a cognitive technology
Studies of a language without many words for numbers help to illustrate the way that language guides human thinking.

The FoxP2 protein sequence from Neandertals and Denisovans is shared by many people today
A study of sequence variation shows a possible selected change among living people, but many still have a form shared with Neandertals and Denisovans.

Did human language evolve as a spandrel?
A critical look at the point of view that human language did not originate from its adaptive role in communication, but from other cognitive functions.
