Cancer fears have grown over a chemical widely used in plastic packaging and food-can linings after new research showed that it affected the development of monkey breasts.

Various studies have linked Bisphenol A (BPA) to breast cancer - and now teams at Washington State University and Tufts University have added weight to these findings.

They found that foetal exposure to the plastic additive alters mammary gland development in primates.

This video (http://youtu.be/8ULk_cNQD3k) shows cutting edge biologist, Frederick Vom Saal of the University of Missouri, connecting the dots between breast cancer cells and Bisphenol A or BPA, a killer-additive found in plastic products such as receipts, food items, clothing and plastic bottles. This film on BPA was first published around 2010.