The way that sucking from a bottle vs. teat works is dramatically different. A quick web search turns up many images and explanations, e.g. http://www.brianpal

The way that sucking from a bottle vs. teat works is dramatically different. A quick web search turns up many images and explanations, e.g. http://www.brianpalmerdds.com/pdf/adsm_section_c.pdf http://www.brianpalmerdds.com/pdf/adsm_section_c.pdf