"Environmental health." . . "Biodiversity." . . "Evolution (Biology)" . . . . "Films for the Humanities & Sciences (Firm)" . . "Films Media Group." . . "Heredity." . . "Reproduction." . . "TED Conferences LLC." . . . . . . "Videorecording"@en . . "TEDTalks Tyrone Hayes + Penelope Jagessar Chaffer - The Toxic Baby?"@en . . . . . "Toxic Baby?"@en . . . . . "Filmmaker Penelope Jagessar Chaffer was curious about the chemicals she was exposed to while pregnant; could they affect her unborn child? So she asked biologist Tyrone Hayes to brief her on one he studied closely: atrazine, an herbicide used on corn. (Hayes, an expert on amphibians, is a critic of atrazine, which displays a disturbing effect on frog development.) Onstage together at TEDWomen, Hayes and Chaffer tell their story."@en . . . . . . . . . "Tyrone Hayes + Penelope Jagessar Chaffer"@en . "Educational films"@en . "Internet videos"@en . . . . .