Nature conservation is effective at protecting animals and plants - and we’re getting better at it. That’s according to a new major study published in the journal Science. Esme Stallard, a BBC climate and science reporter, explains what conservation is, where it’s worked (including for humpback whales), and why we need it.

Plus, we hear from two people who work in conservation. Charles Emogor has a PhD in pangolins and is from Nigeria. He shares why he loves them and how he’s saving them from being hunted. And Aiita Joshua Apamaku, from Uganda, tells us why he finds conservation so exciting.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: whatintheworld@bbc.co.uk Presenter: Hannah Gelbart Producers: Mora Morrison, Baldeep Chahal and Sophie Smith Editor: Verity Wilde