Explosions, mines and sonar could be harming endangered marine life in the Black Sea, according to scientists at a university in Poland. We speak to Ewa Węgrzyn, a professor of zoology who’s conducted the research. The BBC’s Frank Gardner talks to us about ghost spy ships and whether Russia could be using them to monitor key infrastructure sites in the North Sea for possible sabotage. And we hear from chef Yevhen Klopotenko, the unofficial ‘ambassador’ of Ukrainian cuisine, who delivers the final verdict on the right way to make kutia. Today’s episode is presented by Victoria Derbyshire and Vitaly Shevchenko. The producers were Arsenii Sokolov, Clare Williamson and Luke Radcliff. The technical producer was Mike Regaard. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

The BBC has been calculating the number of Russians who have died in the war and civilian recruits make up a third of their frontline losses. Olga Ivshina of BBC Russian and Mark Urban, diplomatic editor at Newsnight, explain what this means for Russian families and the course of the conflict. And we hear from the director of the Kherson regional art museum, Alina Dotsenko, about the moment its treasures were taken away in unmarked vehicles. Today’s episode is presented by Lyse Doucet and Vitaly Shevchenko. The producers were Arsenii Sokolov, Clare Williamson and Luke Radcliff. The technical producer was Emma Crowe. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

More than 10,000 Ukrainian civilians have been trained as soldiers by the British army here in the UK. Documentary maker Stacey Dooley shares the stories of one cohort who she followed through their intense five-week course. And 21-year-old Jack Teixeira has been charged over the leak of confidential US intelligence documents. He faces up to 15 years in prison. Russia expert, Prof Mark Galeotti talks us through the latest developments, what it could mean for the war and the shadowy figures vying for power in Russia. Today’s episode is presented by Victoria Derbyshire and Vitaly Shevchenko. The producers were Arsenii Sokolov and Luke Radcliff. The technical producer was Dafydd Evans. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

Could the leak of secret Pentagon documents affect the course of the war in Ukraine? Defence expert Sam de Bendern gives her analysis of the US national security breach and we hear about another Russian dissident facing 25 years in prison for criticising the war. The BBC Ukraine correspondent James Waterhouse has been in Kharkiv to see the de-mining efforts as so-called butterfly bombs continue to injure civilians. And we have an aural treat in the shape of YouTube project: How Does Ukraine Sound? Its producer Yevhen Synelnykov has been collecting unique sounds from cities across Ukraine, such as the sea, factories and churches, and making music from them. Today’s episode is presented by Victoria Derbyshire and Vitaly Shevchenko. The producers were Arsenii Sokolov, Clare Williamson and Luke Radcliff. The technical producer was Philip Bull. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

Elya describes how she took her eight-year-old niece out of Ukraine after a missile hit her home in Kharkiv last year. Elya was just 17 at the time. Now she’s returned to visit her parents and says: “It’s the most times I’ve seen my father cry.” The BBC’s Francis Scarr reports on the assassination of a pro-war blogger in St Petersburg, a defection and suggestions that Ukraine may be willing to negotiate over Crimea. And Ivan Chuvilyaev explains how the group Idite Lesom (Go By the Forest) is helping Russians afraid of mobilisation. And finally Vitaly tells Victoria about the Ukrainian origins of the humble Easter egg. Today’s episode is presented by Victoria Derbyshire and Vitaly Shevchenko. The producers were Arsenii Sokolov and Luke Radcliff. The technical producer was Jonny Hall. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480 Audio credit: The Dossier Center

LONG: BBC Moscow’s Will Vernon gives Lyse and Vitaly the latest on the murder of a pro-war blogger in St Petersburg and a growing spate of people denouncing family, colleagues and strangers. Vitaly speaks to Tetyana Sokolova, a midwife in a Mariupol maternity hospital that kept the wards open while the city lost water, gas and electricity. And as Finland ends 70 years of official strategic neutrality by joining the Nato military alliance, former Finnish PM, Alexander Stubb says Putin only has himself to blame and dismisses Russian talk of counter-measures. Today’s episode is presented by Lyse Doucet and Vitaly Shevchenko. The producers were Arsenii Sokolov and Luke Radcliff. The technical producer was Jonny Hall. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

The Wall Street Journal has vehemently denied allegations one of its reporters is a spy, after he was detained in Russia. The BBC’s Eastern Europe correspondent Sarah Rainsford, who was herself expelled from Russia as a national security threat, tells us this is a worrying development. Francis Dearnley of the Telegraph’s podcast Ukraine: The Latest, joins Vitaly and Frank to discuss the geopolitics of the Ukraine war and we answer your questions on the ingredients of borscht. Today’s episode is presented by Frank Gardner and Vitaly Shevchenko. The producers were Arsenii Sokolov, Clare Williamson and Luke Radcliff. The technical producer was Emma Crowe. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

After witnessing and reporting on war crimes around the world, Janine di Giovani realised that journalists like her were often among the first people to arrive at the scene of atrocities. So she linked up with fellow journalist, Natalya Gamenyuk, to set up the Reckoning Project. Their aim - to teach reporters how to gather evidence and testimonies that can be used later in court. Irena Taranyuk from the BBC Ukrainian Service answers a listener’s questions about how Ukrainian farmers are coping. And award-winning author Mikhail Shishkin explains why he finds it painful to be Russian at the moment. Today’s episode is presented by Frank Gardner and Vitaly Shevchenko. The producers were Arsenii Sokolov, Natasha Fernandes, Clare Williamson and Luke Radcliff. The technical producer was Mike Regaard. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

What would a Ron DeSantis presidency mean for Ukraine? The Republican governor of Florida has been giving mixed messages on Ukraine, and he could one day be president. Justin Webb, host of Americast, tells us why this matters, and Alex Roarty of the Miami Herald tells us who is he and what he stands for. Also, as Ukraine takes on England in the latest round of Euro qualifiers, Andrew Todos, a Ukrainian British football journalist, tells us about how the beaufiful game is faring during a time of war. Plus we answer your questions about depleted uranium, tanks, and weapon supplies. Today’s episode is presented by Victoria Derbyshire and Frank Gardner. The producers were Arsenii Sokolov, Clare Williamson, Natasha Fernandes and Luke Radcliff. The technical producer was Mike Regaard. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

Russia claims a Chinese plan for peace could be the basis for an end to hostilities. China expert, Isabel Hilton, and Arkady Ostrovsky, The Economist’s Russia editor, discuss China’s emerging role in the war, and what this might mean for Ukraine and the West. As President Putin visits occupied Mariupol, we talk to Odesa MP Oleksiy Goncharenko about how he felt seeing the Russian leader on Ukrainian soil. And Arkady talks through his podcast, Next Year in Moscow. Today’s episode is presented by Victoria Derbyshire and Vitaliy Shevchenko. The producers were Arsenii Sokolov, Clare Williamson, Natasha Fernandes and Luke Radcliff. The technical producer was Mike Regaard. The series producer is Fiona Leach. The assistant editor is Alison Gee and the editor is Sam Bonham. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480 Music credit: Darren Ng for the original music for Next Year in Moscow podcast.