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Catherine Duigan

@cduigan.bsky.social
1.8K followers 2.4K following 608 posts

Environmental consultant, researcher & non-fiction writer; water & nature; heritage & natural history; women in science; biographer of Dr. Kathleen Carpenter; Ireland & Wales connections; accepts commissions. catherineduigan.co.uk

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Reposted by Catherine Duigan
NationCymru @nation.cymru · 18h
The BBC has announced a season of television, radio and online programmes to mark the 60th anniversary of the Aberfan disaster, remembering the 144 people who died and the lasting impact on the village and communities across Wales
nation.cymru
BBC announces special programmes to mark 60th anniversary of Aberfan disaster
Nation.Cymru staff The BBC has announced a season of television, radio and online programmes to mark the 60th anniversary of the Aberfan disaster, remembering the 144 people who died and the lasting i...
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Catherine Duigan @cduigan.bsky.social · 11/10/2026
Not for long After the dark The dawning. After the first light The sun. Becoming @rsthomaspoet.bsky.social St. Nidan's Church #YnysMôn #Anglesey #WalesCoastPath #WelshPoetry #Poetry #SundayMorning #autumn #Wales #Cymru
Autumn leaves on path leading to church door; sunshine cutting through tree branches
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Catherine Duigan @cduigan.bsky.social · 09/10/2026
Adorned with #scallop shells, a pilgrim by #Flemish artist Peter Snijers (1681-1752) #IsolaBella #Italy #envhist #pilgrimage #religion #shellfish #FishFriday #heritage #art #oilpainting #FlemishArt
Oil painting of male beared pilgrim figure holding large wooden staff and hat edorned with cross on chain and four scallop shells.
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Reposted by Catherine Duigan
New Scientist @newscientist.com · 08/10/2026
An analysis of lake sediments in south-eastern Australia has revealed that the expulsion of Indigenous communities in the 19th century resulted in an explosion of tree cover and more devastating wildfires. Read more: www.newscientist.com/articl...
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Catherine Duigan @cduigan.bsky.social · 09/10/2026
A shared heritage - This project brought together a range of women from across the region - all ages & backgrounds - to reflect on their Irish identity, through folklore, art, personal objects and family history. #migration #Ireland #Liverpool @liverpooluni.bsky.social www.bbc.co.uk/news/article...
bbc.co.uk
Irish heritage and culture, as told by the women of the North West
A new exhibition is celebrating the role of women in the rich Irish communities across northern England.
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Catherine Duigan @cduigan.bsky.social · 08/10/2026
In 1969, just before Apollo 11 was about to land on the moon, an emergency alarm rang. “Our astronauts didn’t have much time, but thankfully they had Margaret Hamilton,” said Barack Obama as gave her the Presidential Medal of Freedom in 2016. #womeninscience www.theguardian.com/science/2026...
theguardian.com
Margaret Hamilton, trailblazer whose software powered Apollo 11 moon landing, dies at 90
MIT computer scientist led development of software for moon mission and earned Presidential Medal of Freedom
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Reposted by Catherine Duigan
Prof Ian Hall @ianhall.bsky.social · 01/08/2026
Heatwaves are warming our rivers too. Since the 1980s: 👉 Compound air–river heatwaves have tripled 👉 River heatwaves are 114% more frequent, 148% longer, and 95% more intense 👉 By 2100, under high emissions, 98.5% of river and atmospherric heatwaves could coincide. www.nature.com/articles/s41...
nature.com
Threefold increase in atmospheric–riverine compound heatwaves under climate change - Nature Geoscience
Co-occurring atmospheric and river heatwaves have tripled since the 1980s across the USA and Europe, and are projected to become the norm by 2100, according to model simulations.
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Catherine Duigan @cduigan.bsky.social · 07/10/2026
Water refilling the seasonal waterbody near Castell-gwylan on the shores of the Menai Strait #Anglesey #limnology #lakes #YnysMôn #LakesOfWales
Vegetation zonation visible around margins of seasonal pond; surface depression with water; wind sculpted tree in foreground.
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Reposted by Catherine Duigan
Helen Day @lbflyawayhome.bsky.social · 01/10/2026
Other work by the Ladybird artists Llangollen Valley Artist: SR Badmin
A view over a green, lightly- wooded valley at Sunset or dawn 
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Reposted by Catherine Duigan
Marsh's Library @marshslibrary.bsky.social · 06/10/2026
In 1671, Friedrich Martens travelled to Svalbard and around Greenland as ship's surgeon on the 'Jonas im Walfisch' or 'Jonah in the Whale'. These engravings of a whale & fin whale are from the diary he kept, first published in 1675, where he recorded the area's flora, fauna & whaling industry.
Engraved plate from 'An Account of several late voyages & discoveries to the south and north ...' 1694, showing whale in profile, left and right, and also a fin whale in profile, with a harpoon on the extreme right
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Julian Hughes @penrhynbirder.bsky.social · 04/10/2026
Cloddiau (sing. clawdd) are one of my favourite features of the countryside in Cymru. An earth bank, dressed with stone on each side - a field boundary in which plants can grow. We walked alongside this one, near Bontnewydd today, that has some impressive oaks growing from its core.
An Oak tree, probably coppiced at some stage, growing from a clawdd, the earth bank dressed with rectangular stones, below which plants grow from the roadside verge.
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Melaine Le Roy @subfossilguy.bsky.social · 15/09/2026
🧊🔥 6 meters !🔥🧊 This is what the largest glacier in the Alps has lost at Konkordiaplatz at 2900 m asl during the insane 2026 summer ! 'No words' as @matthias-huss.bsky.social (pictured here) said! 😲😱 📷 A. Linsbauer
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JNCC @jncc.bsky.social · 05/10/2026
Every day, decisions are made that shape nature's future. But those decisions need evidence. Today we're launching our Science Impact Strategy 2026-2030, setting out how we'll maximise the impact of our science & turn evidence into action. 📽️ youtu.be/Vr5hQRS0Tzc?... 🔗 jncc.gov.uk/science-impa...
youtu.be
JNCC Science Impact Strategy 2026-2030
YouTube video by JNCC
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Reposted by Catherine Duigan
NHM Library and Archives @nhmlibraryarchives.bsky.social · 24/09/2026
Thomas Pennant's (1726-1798) body of work spanned natural history, antiquities and travel. To celebrate his tercentenary, we've added his correspondence and catalogues to our Digital Special Collections: buff.ly/ZFULOe0. #Manuscripts #18thCentury #HistoryOfScience #HistoryOfNaturalHistory
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Catherine Duigan @cduigan.bsky.social · 04/10/2026
"When Francis preached love to the birds They listened, fluttered, throttled up Into the blue like a flock of words Released for fun from his holy lips." Seamus #Heaney #IrishPoetry #feastday #StFrancis #writing #nature #naturewriting #Orto #Sunday
Metal statue of St. Francis casting birds into the air.
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Catherine Duigan @cduigan.bsky.social · 03/10/2026
"I cannot command #winds and #weather." Horatio #Nelson But it looked like he had complete control over the #MenaiStrait today - beautiful day on @walescoastpath.bsky.social #Anglesey #YnysMôn #walking #wellbeing #IrishSea #landscape #BlueSky #history #Navy #Admiral #forecast #Wales #seafaring
Silhouette of Nelson statue against blue sky and above very calm sheet of sea; wooded land margins; 4 people clustered below statue.
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Catherine Duigan @cduigan.bsky.social · 02/10/2026
From #Talwrn #Anglesey: "The diary chronicles daily life through anecdotes about her children, neighbours, gardening and love of poetry and flowers, alongside reflections on the progress of the war." #heritage #nature #family #community #YnysMôn #Wales
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Catherine Duigan @cduigan.bsky.social · 30/09/2026
A shared heritage - #Holywells and the veneration in #Ireland of St. David, patron Saint of #Wales. #water #religion #IrelandWales #mnanaeireann #wildswimming #womenofireland #StDavid #hats #kneeling #statue @nlireland.bsky.social www.flickr.com/photos/nlire...
flickr.com
Well, Well, Well.
These elegantly attired visitors have gathered at St. David’s Well near Oylgate, now usually spelled Oylegate, in County Wexford. Several pause beside the statue of St. David, while an admirably direc...
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Reposted by Catherine Duigan
JNCC @jncc.bsky.social · 29/09/2026
🌊 A newly discovered pink sea fan coral colony off the South West coast of England shows the power of collaborative seabed mapping in action 🔗 bit.ly/4AT1lhU #CHAS2026 #SeabedMapping #CSM2026
A shot from above a grey brown seabed. Dotted along are peachy-coral coloured corals shaped like fans
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Catherine Duigan @cduigan.bsky.social · 28/09/2026
A shared heritage - The Ladies of #Llangollen from #Kilkenny, a very special part of our #Ireland #Wales story - will be great to see this exhibition at Tŷ Pawb, #Wrexham @norenashopland.bsky.social
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Catherine Duigan @cduigan.bsky.social · 27/09/2026
Educated in a school on the #RiverTrent in #Gainsborough #Lincolnshire, pioneering freshwater ecologist Kathleen Carpenter would have also been a witness to its #pollution from industry. #worldriversday @trentriverstrust.bsky.social @lincswildlife.bsky.social biography.wales/article/s12-...
Collage of images including background map of the River Trent flowing through Gainsborough, buildings on the riverbank, a salmon and photograph of Kathleen Carpenter in Edwardian clothing.
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An Taisce @antaisce.bsky.social · 27/09/2026
World Rivers Day offers a perfect opportunity to reflect on how we can reverse these trends for good By taking action and following the best available evidence, we can create lasting solutions to pollution. Healthy rivers are essential for nature, communities & future generations. #WorldRiversDay
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NationCymru @nation.cymru · 26/09/2026
Cader Idris: let the mountain speak is a capacious bag of a book. It will be essential reading for mountain lovers for years to come ✍️Andrew Green wp.me/p8Mk4U-1tVm
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Reposted by Catherine Duigan
NationCymru @nation.cymru · 26/09/2026
A fossil discovered on a Welsh beach has helped researchers uncover new information about the fish that swam in the seas around Wales more than 200 million years ago
wp.me
Fossil found on Welsh beach helps solve 200-year mystery
Nation.Cymru Staff A fossil discovered on a Welsh beach has helped researchers uncover new information about the fish that swam in the seas around Wales more than 200 million years ago. Fossil hunter ...
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Reposted by Catherine Duigan
NationCymru @nation.cymru · 26/09/2026
In Wales, climate change is discussed as if it sits apart from the cost-of-living crisis. Yet extreme weather affects harvests, supply chains and prices. Flooding threatens homes and businesses. The effects may begin elsewhere, but they do not remain elsewhere ✍️ Nicola Pulman
wp.me
Why climate change isn’t top of Wales’s agenda and how we change that
Nicola Pulman, Director of Size of Wales I had recently returned from visiting Size of Wales’s partners, the Sumatran Orangutan Society (SOS) and TaHuKah, in a 118,000-hectare landscape that is one of...
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Catherine Duigan @cduigan.bsky.social · 26/09/2026
Plant #heritage: A national collection of Welsh #ferns is being created at Treborth Botanic Gardens @treborthbg.bsky.social - Da iawn! @plantheritage.bsky.social @bangoruniversity.bsky.social #botany #Wales #pteridology #wildflowerhour
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Catherine Duigan @cduigan.bsky.social · 26/09/2026
A shared heritage - a way of talking in #Ireland and #Wales which is not a straightforward case of yes or no. #IrelandWales #Welsh #Irish #language #Cymraeg #gaeilge #verbs
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Reposted by Catherine Duigan
Julian Hughes @penrhynbirder.bsky.social · 25/09/2026
Do you have nature records in notebooks that you never look at and wonder what to do with? I've transcribed 10,000 records from the 1960-70s from a Welsh ornithological legend into @birdtrack.bsky.social and @cofnod.org.uk. And it was fascinating... #BirdingWales www.cofnod.org.uk/news/natural...
cofnod.org.uk
Naturalists' Notebooks: a treasure trove - Cofnod
Naturalists' Notebooks: a treasure trove
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Lighthouses Of Wales @lighthousewales.bsky.social · 26/09/2026
A day of music from lighthouses around Britain and Ireland is just starting now on BBC Radio 3! "Where the Light Sings" www.bbc.co.uk/sounds/play/...
bbc.co.uk
Radio 3 - Listen Live - BBC Sounds
Listen live to Radio 3 on BBC Sounds
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Reposted by Catherine Duigan
Oxfam Ireland @oxfamireland.bsky.social · 25/09/2026
“Nobody will be able to say that we did not know. Let it not be said that we did not act," Taoiseach Micheál Martin said of the Gaza genocide in today's address at the UN.
irishtimes.com
When true horrors of Gaza are fully revealed ‘it will shame the world’, Martin tells UN
Taoiseach says the prospect of a two-state solution is being deliberately undermined and calls for stronger international cooperation
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Catherine Duigan @cduigan.bsky.social · 25/09/2026
A shared heritage - The Edge, David Howell Evans, had Welsh parents #U2 #Ireland #Wales #IrelandWales #rockstars "During his childhood in #Dublin, Evans talked in two different accents, using a Welsh accent at home and an Irish accent whenever he was outside." en.wikipedia.org/wiki/The_Edge
en.wikipedia.org
The Edge - Wikipedia
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Catherine Duigan @cduigan.bsky.social · 25/09/2026
An eternal encounter - Woven in #wool and #silk with gold and silver threads, an #otter wrestles with a #lamprey in the #Borromeo #Tapestry #IsolaBella #fabric #nature #religion #heritage #FishFriday #Italy #heritage #Maggiore #envhist #Petromyzon #jawless #fish
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Paul Montgomery @stonefishweirs.bsky.social · 19/07/2025
Wood #fishweirs on the #RiveSuir below the Viking founded city of #Waterford,IR. Weirs have been used from prehistory for #salmon, #lamprey #eels #trout. Use of weirs caused debate and social conflict over access the rivers fisheries between indigenous communities and landlords. 1/4 #coastalhistory
Weir at Knockboy 1900-1910
https://catalogue.nli.ie/Record/vtls000036423Map of “three sisters rivers” the #Barrow, #Nor and #Suir flow down joining together in Wexford harbour Ireland.
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Catherine Duigan @cduigan.bsky.social · 24/09/2026
In praise of #snails- Just gorgeous writing and reading to brighten you day. #nature #art #naturewriting #wellbeing #highlyrecommended #gardening
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Catherine Duigan @cduigan.bsky.social · 23/09/2026
A special new purple plaque is set to be unveiled in Betws-yn-Rhos to celebrate a truly remarkable woman. Victorian expert Mary Lloyd Wynne made history as the very first female #fungi specialist in #Wales. #womeninscience #envhist #mycology #naturalhistory www.inyourarea.co.uk/news/why-a-t...
inyourarea.co.uk
Why a tiny village near Conwy is celebrating one of Wales' most forgotten heroines | InYourArea
Victorian fungi expert Mary Lloyd Wynne honoured with Purple Plaque
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NationCymru @nation.cymru · 22/09/2026
More than £1.8 million is being invested in a new research scheme that will see PhD students work with some of Wales’ biggest cultural and heritage organisations to explore the country’s history, culture and identity
nation.cymru
£1.8m research scheme to explore Wales’ history, culture and identity
More than £1.8 million is being invested in a new research scheme that will see PhD students work with some of Wales’ biggest cultural and heritage organisations to explore the country’s history, cult...
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NationCymru @nation.cymru · 23/09/2026
Over 20,000 people have backed a petition calling on the Welsh Government to reject Reform UK's motion to consider a targeted badger cull to 'manage' bovine TB wp.me/p8Mk4U-1tD9
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Tina Adcock @tinaadcock.bsky.social · 16/09/2026
So pleased that the Women's #EnvHist Network has chosen *A Cold Colonialism* as their featured book for fall 2026! www.envhistwomen.com/newbook-adco...
envhistwomen.com
Adcock-ColdColonialism
A Cold Colonialism: Modern Exploration and the Canadian North by Tina Adcock Winner of the Canadian Historical Association's 2026 Clio Prize (The North)  Exploration has long been pivotal to...
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Bathsheba Demuth @brdemuth.bsky.social · 17/09/2026
Coming in February! An edited collection on rivers past and present and how they move. The code E27RIVER gets you 30% off a preorder from Duke. #envhist #rivers #envhum
Cover of the book Rivers on the Move, edited by Bathsheba Demuth, by Mark Healey, anyone Giacomo Pareinello & Laurence Smith. Cover shows white swirls of a river channel on a blue background
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NiCHE Canada @nichecanada.bsky.social · 14/09/2026
"Before 'Lake America,' There Was 'Lake Frontenac'" by Scott Berthelette is part of our Tracking the Effects: Environmental History and the Current United States Federal Administration series, published in collaboration with @activehist.bsky.social niche-canada.org/2026/09/14/b... #envhist
niche-canada.org
Before “Lake America,” There Was “Lake Frontenac”
Lake Ontario's history shows political renaming attempts often fail, as Indigenous-derived names endure despite official decrees or vanity.
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Catherine Duigan @cduigan.bsky.social · 11/09/2026
#Cymru, where #geology, #nature and #industry meet - the story of #Wales #landscape #heritage #place #LlynPadarn #Eryri #slate #lake #freshwater #Llanberis #envhist #cynefin #Torgoch
View along slate wall above large linear lake surrounded by woodland and some fields; blue sky with clouds
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Cofnod Local Environmental Records Centre @cofnod.org.uk · 28/08/2026
Cofnod #RecordOfTheWeek is Convolvulus Hawk-moth (Agrius convolvuli) one of two Anglesey records seen by CatherineD recently. @sewbrec.org.uk @bispowys.bsky.social @wwbic1.bsky.social @savebutterflies.bsky.social
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NFBR @nfbr.bsky.social · 02/09/2026
lnkd.in/p/d7P_ciYJ
lnkd.in
In Search of the Elusive Freshwater Jellyfish 15 Dec 2026 | John Terenzini | University of Plymouth | FREE The freshwater jellyfish, Craspedacusta sowerbii, was first described in London by British… ...
In Search of the Elusive Freshwater Jellyfish 15 Dec 2026 | John Terenzini | University of Plymouth | FREE The freshwater jellyfish, Craspedacusta sowerbii, was first described in London by British z...
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Reposted by Catherine Duigan
Armando Rosario-Lebrón @rosariolebronentomology.com · 06/09/2026
New Thinozercon trip in Wales. This time a very successful trip with LOTS of amazing little critters. Everything from Crustaceans, Hemiptera and velvet mites in one location. Wales has such amazing #ukwildlife 🌿🧪 #inverts #bugsky #entomology Blog here: rosariolebronentomology.com/thinozercon/...
A pale, translucent Corophium amphipod in side view, walking across wet grey estuarine mud on its long banded antennae and front legs, with glistening sediment in the background.A bright red velvet mite, plush and densely furred, walking over coarse damp sand mixed with tiny shell fragments and strands of green algae.A small orange-brown predatory mesostigmatid mite with a smooth, glossy oval body, standing on rippled wet mud, its pale forelegs extended ahead like feelers.A slate-blue sea springtail, Anurida maritima, its plump segmented body covered in fine white hairs, crawling across shiny waterlogged mud, with a much smaller pale springtail visible below.
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Royal Irish Academy @ria.ie · 09/09/2026
What does it mean to live on an island, and why does it matter now? In his new book, Ireland: Why it matters to be an island, Michael Cronin asks us to rethink Ireland's relationship with the sea and consider what our island status means in an age of climate emergency Pre-order now: bit.ly/4cBfZ2H
Book cover of "Ireland: Why It Matters to Be an Island" by Michael Cronin, featuring stylized waves and a sun on a beige background.
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Royal Irish Academy @ria.ie · 08/09/2026
A look back at some key moments in Ireland’s aviation history, from the first flight to the pioneering Irish women who took to the skies. ✈️ Read the latest @dib.ie blog to discover more: www.dib.ie/blog/balloon...
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Lee Raye @leafyhistory.bsky.social · 07/09/2026
Happy release day from me and my new book! CREATURES OF STORY AND SONG is out today with @reaktionbooks.bsky.social . What do you think of my book cake?! (thanks Laurie!)
Photo of the author with curly hairs and glasses holding out a plate with a slice of cake with 'happy book release day'written over the topCake with my book's cover on the top!  The title is 'Creatures of Story and Song: Tracing Britain's Lost Species' by Lee Raye. The cover is turquoise blue with wolves walking with people
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NationCymru @nation.cymru · 06/09/2026
The Norman invasion created an English consciousness and established England’s domination of the British islands. In time that had implications for Wales, as well as Scotland and Ireland. We still live with the consequences ✍️Desmond Clifford wp.me/p8Mk4U-1sqF
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NationCymru @nation.cymru · 07/09/2026
A pioneering Welsh scientist who transformed understanding of prehistoric animals is to be honoured with a second blue plaque
wp.me
Pioneering Welsh fossil hunter recognised with second blue plaque
Nation.Cymru staff/agencies A pioneering Welsh scientist who transformed understanding of prehistoric animals is to be honoured with a second blue plaque. Dorothea Bate, who was born in Carmarthen in ...
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NationCymru @nation.cymru · 07/09/2026
Scientists have called for an overhaul of the way badgers are vaccinated against bovine tuberculosis in Wales, warning that major gaps in evidence make it difficult to establish whether the programme is helping to reduce the disease in cattle
wp.me
Scientists question impact of badger vaccination on bovine TB in Wales
Mark Mansfield Scientists have called for an overhaul of the way badgers are vaccinated against bovine tuberculosis in Wales, warning that major gaps in evidence make it difficult to establish whether...
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