4 ms·
They can also recognize their siblings.[1] [1] http://www.nature.com/news/2007/070611/full/news070611-4.html http://www.nature.com/news/2007/070611/full/news07
by bradyd 12y ago
They can also recognize their siblings.[1]
[1] http://www.nature.com/news/2007/070611/full/news070611-4.html http://www.nature.com/news/2007/070611/full/news070611-4.htm...