The San Francisco Zoo is mourning the loss of Andy, their beloved polar bear. KTVU reports, "Officials said Andy recently began to show signs of lethargy, decreased appetite and disorientation, forcing veterinary staff and caretakers to begin monitoring her condition closely and encouraging her to eat and drink fluids." But, after his her liver failure proved too much, the 27-year-old furry puff fluff was euthanized today. Andy was a member of the SF Zoo since 1985.