A spring bear sighting in Tennessee became even more special when a woman spotted a mother black bear nursing four cubs. The moment was rare on its own, but the soft "purring" sounds the cubs made while feeding made it especially memorable, as PetHelpful described. What happened? On May 23, TikTok user Mandy Mayhugh (@mandy_mayhugh) shared a remarkable view from the deck of a house in Gatlinburg, Tennessee. @mandy_mayhugh Here is the 1st video …