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Baleen whales were almost hunted to extinction. Now they face a new threat – global shipping. But despite humans blighting their lives, can they now recover and help revive ocean life?Justin Rowlatt speaks to two researchers who observe these intelligent, sociable giants up close. Matt Savoca at Stanford University explains the scale of the slaughter inflicted by whalers in the twentieth century, while Ryan Reisinger of Southampton University describes how modern ships continue to harm whales.By virtue of their sheer enormity, these animals also underpinned entire ocean ecosystems that have since collapsed, as veteran oceanic researcher Victor Smetacek explains. So with their numbers finally recovering, what can we humans do to help? Justin asks Guy Platten, secretary general of the International Chamber of Shipping.Presenter: Justin Rowlatt Producer: Laurence Knight Picture: Aerial view of a whale getting up close to a boat in the Sea of Cortez in the Gulf of California; Credit: Mark Carwardine/Future Publishing/Getty Images

We’re looking at the future of the job interview in a world forever changed by the pandemic. Elizabeth Hotson asks whether video conferencing software will hasten the demise of the traditional face to face grilling. And we also find out how virtual reality and artificial intelligence can help level the playing field for candidates from disadvantaged backgrounds. Over a long and distinguished career in business, Heather McGregor, Executive Dean of Edinburgh Business School, has been on both sides of the desk - as interviewer and interviewee and she gives her take on how we’ll get jobs in the future. RADA alumna and confidence coach and trainer, Imogen Butler-Cole tells us how to put our best foot forward - over video conferencing. Christophe Mallet, founder and CEO of immersive soft skills simulator, Body Swaps, explains how technology can provide invaluable interview training to inexperienced candidates. Plus, Michael Platt, a marketing professor and neuroscientist at the Wharton School of the University of Pennsylvania explains why the interview could soon be redundant in some industries.Presenter/producer: Elizabeth Hotson Image: A man sits at a table with lights pointing in his face; Credit: Getty Images

The mountainous archipelago of SãoTomé and Príncipe was once the world’s biggest exporter of cocoa. The twin island nation in the Gulf of Guinea was uninhabited until their discovery by Portuguese explorers in the fifteenth century. They brought slaves to work the land producing cash crops like sugar and coffee. In the 1890s these crops were replaced by cocoa and the islands became known as the biggest cocoa exporter in the world. The plantations were farmed first by slaves and then by forced, exploited islanders. When the horrific working conditions were exposed in the 1920s, chocolate manufacturers switched their source of beans to Ghana and Ivory Coast. SãoTomé’s ignominious reputation as the chocolate nation was over. Presenter Tamasin Ford went to visit the islands to take a look at the cocoa sector now.Produced by Russell NewloveImage: Chocolate making; Credit: Russell Newlove/BBC