title: Commentary on: "Number-space mapping in the newborn chick resembles humans' mental number line".
authors: Center for Cognitive Neuroscience, Duke University Durham, NC, USA ; Department of Neurobiology, Duke University Durham, NC, USA.
authors: Caroline B
authors: CB
authors: Drucker
authors: Center for Cognitive Neuroscience, Duke University Durham, NC, USA ; Department of Psychology and Neuroscience, Duke University Durham, NC, USA.
authors: Elizabeth M
authors: EM
authors: Brannon
keywords: birds; culture; mental number line; numerical cognition; spatial cognition