By Liz Langley   PUBLISHED March 19, 2016

The Force is strong in Jedi.

The black Labrador retriever recently detected a drop in blood sugar in 7-year-old Luke Nuttall, who has Type 1 diabetes. His glucose monitor didn’t pick it up, but Jedi did—and woke up Luke’s mother, Dorrie Nuttall, as he was trained.

The California family’s amazing story, which went viral on Facebook, made NatGeo’s own Nicole Werbeck wonder, “How do dogs use their noses to detect human disease?”

Weird Animal Question of the Week sniffed out some answers.

more at Source: How Dogs Can Sniff Out Diabetes and Cancer