The 1955 Adoption Act allowed adoptive parents to sever ties with a child's birth parents, and left few options for adoptees to access information about them. For Maori who went through the system as children and their descendants, this often means having no knowledge of their whakapapa.

Elif Shafak is an award-winning British-Turkish novelist, activist, political scientist and essayist. She has published 19 books, her latest, The Island of Missing Trees, was shortlisted for the 2021 Costa Book Award.

Volker Kuntzsch passionately believes New Zealand needs to move towards more ocean-based primary production, with plankton and seaweed leading a burgeoning blue economy.

This week Denmark became the first country in the European Union to lift all its Covid-19 restrictions - including the wearing of face masks. Despite a rise in case numbers, the Scandinavian country is now relying on its high rate of vaccination to cope with the Omicron variant.

Listener feedback from the Saturday Morning program.

Directed by New Zealander Briar March, new documentary Mothers of the Revolution tells the story of one of the longest protests in history. Between 1981 and 2000, thousands of women came together at Greenham Common in Berkshire to stand against the decision of the British government to allow cruise missiles to be stored there. UK-based activist Rebecca Johnson is one of the most-recognised Greenham Common women.

New Zealand veterinarian Trish Johansen has been running a clinic in Siem Reap since 2015, and among her clients have been Cambodia's remarkable landmine-clearing rats. The death of one such rat, Magawa, made world headlines earlier this month.

In his new book Sweat, best-selling author Bill Hayes turns his attention to our long-standing obsession with exercise.

Ruawai-raised actor Roy Billing has been gracing New Zealand screens since the 1970s.  Having returned to our shores after being based in Sydney for many years, Billing will soon be treading the boards in Auckland Theatre Company's production of Bess Wohl's Tony-nominated comedy Grand Horizons.

The delay of a highly-anticipated report into parties held in Downing Street during lockdown has prompted calls for UK prime minister Boris Johnson to stop suppressing "crucial details" and tell the truth.