Tonight, we hear a repeat of Dr. Ken Whelan's documentary on the Mayfly. Something strange is happening with mayfly populations. In this Nature On One special, fisheries scientist Dr Ken Whelan sets out to uncover the truth.

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The Sustainable Futures Forum brought together experts in biodiversity, climate action, and education. Terry Flanagan explores Ireland's nature crisis with Seán Ronayne, Éanna Ní Lamhna, Niall Hatch, and meets voices from the EPA, Creative Ireland, and UCC students working across science, policy, and the arts for a sustainable future.

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Derek and Niall discuss how we can identify different species through their distinctive features and calls, and we answer some of your questions.

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Last month, the town of Dungarvan celebrated the unveiling of Crockery Mountain, a 45 foot wide mosaic made from donated cups, plates, bowls and mugs. It was created to encourage sustainability and avoid waste. Terry Flanagan had to pay a visit and he speaks to the artist, Sean Corcoran.

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In the human world, we know that friendships are important. But a recent report in 'Proceedings of the Royal Society B', show that friendship is an important bond for gorillas studied in Rwanda. One of its authors, Victoire Martignac, tells us more.

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Global Action Plan is an environmental charity that guides people on a journey of discovery to reconnect us with nature and with one another. Terry Flanagan, met with Hans Zomer, CEO of GAP, and Niamh Ní Iceadha, the charity’s Education Officer, in the organisation’s Ballymun GLAS gardens, where they outlined some of their initiatives.

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Over the course of the summer, we received lots of positive emails from listeners about improved butterfly numbers. Terry Flanagan met lepidopterist Jesmond Harding of Butterfly Conservation Ireland to find out whether our optimism this year is justified.

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Ireland’s historic Royal Canal, originally built in the late 1700s, is now home to the longest Greenway in the country which extends from Dublin to Longford. Author Tom Dredge speaks to Éanna Ní Lamhna about his new book about the waterway, 'Rambling Along the Royal Canal: A Journey into the Heart of Ireland.'

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BirdWatch Ireland is Ireland’s largest wildlife conservation charity, with a nationwide membership of over 15,000. Those members all receive Wings, the NGO’s main membership magazine, and the children's edition, Bird Detectives. Niall Hatch takes us through the key issues in both magazines this summer.

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Brendan Fitzpatrick sent a voice note to tell us about an interesting music festival. This summer, Co. Wicklow is alive with the sound of Ancient Music in the Forest, a festival celebrating ancient, traditional and early music in the natural forest amphitheatre at Dorlindon Nature Sanctuary, Kilmacanogue, Co. Wicklow.

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