http://www.sciencedaily.com/releases/2014/07/140724134023.htm
I found this paragraph to be particularly interesting (excerpt from above link):
The findings show that early joint attention initiation without smiling
http://www.sciencedaily.com/releases/2014/07/140724134023.htm
I found this paragraph to be particularly interesting (excerpt from above link):
The findings show that early joint attention initiation without smiling