Penguins more likely to eat clear or white plastic - experts

Research shows penguins are more likely to eat discarded tops made from white or clear plastic, than any other colour. The study involving almost 70 King and Gentoo penguins from Kelly Tarlton's Aquarium in Auckland show they gravitate to white bottle tops even when faced with a rainbow of colour choices. University of Auckland's Dr Ariel Heswall spoke to Lisa Owen.