GENETICS × LANGUAGE

The Language Gene That Wasn't

2007 CE

History · Contemporary · Holocene · Meghalayan

For a while, science thought it had found the language gene: FOXP2, broken in a family with severe speech disorder, carrying two human-specific changes and an apparent signature of recent selection. Then ancient DNA showed Neanderthals had the very same changes, and a 2018 reanalysis of hundreds of genomes found no evidence of recent selection at all: the celebrated sweep was an artefact of who had been sampled. What remains is a gene vital to speech, and no molecular birthday for language.

Why it matters

This fiche earns its place by being wrong in public: a beautiful story, dismantled by better data, in full view. Language surely has a genetic foundation, but it is written across many genes and deep time, possibly shared in part with our extinct cousins, and no single switch was flipped. How language began remains among the hardest open questions about our species, and honest timelines should say so.

Dating & uncertainty

FOXP2 was identified through a family whose mutations disrupt speech, and two human-specific changes plus a sweep signal made it 'the language gene'. The anchor marks 2007, when Neanderthal DNA showed they carried the same two changes, pushing any sweep before our lineages split; a 2013 study found a regulatory change Neanderthals lacked, and in 2018 the original sweep signal dissolved entirely, an artefact of sample composition.

Sources

  1. Krause et al. (2007), Current Biology · The derived FOXP2 variant of modern humans was shared with Neandertalsdoi:10.1016/j.cub.2007.10.008
  2. Maricic et al. (2013), Molecular Biology and Evolution · A recent evolutionary change affects a regulatory element in the human FOXP2 genedoi:10.1093/molbev/mss271
  3. Atkinson et al. (2018), Cell · No evidence for recent selection at FOXP2 among diverse human populationsdoi:10.1016/j.cell.2018.06.048

Our species’ history as one day

23:59:545.2 s before midnight

if the 315,000 years of Homo sapiens were compressed into a single day

See it on the timeline