cadmium, a toxic metal often used in batteries, has for the first time been found to have a biological use
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/new-role-cadmium
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-metals
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/micro-organisms
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/life-science
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research