Tuesday 8 July 2014, Fishguard, Pembrokeshire, Wales, UK. Aster can tell her when her blood sugar levels are low, saving her from diabetic hypoglycemic reaction © D Legakis/Alamy Live News

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Photo credit: © D Legakis / Alamy / Afripics
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Keywords: aster, blood, clark, diabetic, dog, elenor, hypoglycemic, levels, mediacal, sugar, uk, wales