The Pittsburgh Zoo & Aquarium is mourning the loss of another animal, just days after a young elephant died suddenly. The Zoo says popular sea lion Seahawk died this past Friday suddenly.

PITTSBURGH (KDKA) -- The Pittsburgh Zoo's beloved elephant calf Tsuni has died. The zoo announced Thursday that Tsuni died from a sudden and brief battle with elephant endotheliotropic herpesvirus.

Last summer, the Pittsburgh Zoo euthanized its only elephant calf — Little Bit, a premature three-month-old rejected by her mother who had stopped eating due to painful teething. PETA criticized the ...