Peanut, a popular squirrel with 537,000 Instagram followers, was euthanized in New York after biting a government worker. Rescued as a baby, Peanut lived with owner Mark Longo for seven years. Authorities cited illegal possession of Peanut and a raccoon, leading to their euthanization for rabies testing. Longo expressed outrage, urging supporters to help fund his animal sanctuary.