http://www.msnbc.com/Onair/nbc/Today/Children/12mos.asp
I recommend everyone go take a look at this site, sponsored by the NBC TV
network. They claim that by 12 months a child will self wean from the
bottle or breast during the day. If anyone thinks this is not supported by
scientific research, please send them an e-mail (you can do that directly
from the site).
Thanks.
Katherine A. Dettwyler, Ph.D.
Associate Professor of Anthropology and Nutrition
Texas A&M University