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Why having a 'bird-brain' might not be a bad thing
Martin explains the neural density of a chimp and crow brain
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Winterwatch highlights—Winterwatch
The best wildlife moments from Winterwatch 2018
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A day in the life of Lucy Lapwing
Duration: 02:22
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The search for wildlife at RSPB Arne
Duration: 02:07
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Have you heard of fern sperm?
Duration: 05:37
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Iolo Williams spots his all time favourite bird
Duration: 02:34
