Kruger national park in South Africa is one of the most well known nature reserves in the world. But the legacy of Paul Kruger, who the park is named after, is complicated. He founded the park to protect South Africa's wildlife, but he is also considered to be a relic of the country's racist past and considered by some as an architect of apartheid. Khanyisile Ngcobo is a reporter for BBC Africa and she tells us more about the name change debate.

Luiz Fernando Toledo BBC News Brazil tells the story of the successful conservation of the giant Amazon fish, the pirarucu. Its skin can be turned into leather, which is used to make high end fashion items. The fishermen who catch them do so in exchange for policing illegal fishing, which has pulled the fish numbers back from the brink of extinction. But despite their role in conservation, and providing the leather, these fishermen don't share in the economic benefits of this fish.

Have you ever thought about the history of toothbrushes or dental hygiene? Tejas Vaidya of BBC Gujarati went to meet an Indian man who owns the world’s largest toothbrush collection.

This episode of The Documentary comes to you from The Fifth Floor, the show at the heart of global storytelling, with BBC journalists from all around the world.

Presented by Faranak Amidi.

Produced by Caroline Ferguson, Rebecca Moore and Alice Gioia.

This is an EcoAudio certified production.

(Photo: Faranak Amidi. Credit: Tricia Yourkevich.)