Derek Mooney and guests explore the natural world in all its forms. Listen live every Monday at 10pm on RTÉ Radio 1.
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Grey Squirrels, introduced to Ireland in the early 1900s, are now widespread and have impacted the population of native Red Squirrels. They are long believed to descend from a dozen released in Longford in 1911. Our panel discusses whether later deliberate or accidental introductions also added to their numbers and genetics...