Subtitled in Polish4:58Why do whales sing?Stephanie SardelisTranslated by Sylwia Słota-KordekReviewed by Rysia Wand
Subtitled in PolishCzy pestycydy są potrzebne? - Fernan Pérez-GálvezTranslated by Sylwia Słota-KordekReviewed by Ola Królikowska
Subtitled in PolishJak wyostrzyć zmysł węchu - Alexandra HorowitzTranslated by Sylwia Słota-KordekReviewed by Rysia Wand
Subtitled in Polish4:38Are food preservatives bad for you?Eleanor NelsenTranslated by Sylwia Słota-KordekReviewed by Marta K. Grochowalska