ST. AUGUSTINE, Fla. -- Nellie, the oldest dolphin in human care, has died at age 61, Marineland Dolphin Adventure announced on its Facebook page on Thursday.

In May 2013, Nellie was awarded an honorary doctoral degree from Jacksonville University during her 60th birthday celebration.

She was born in Marineland on Feb. 27, 1953 and became a national celebrity, appearing in a Timex commercial and in TV shows featuring Marineland.

"While an unfortunate loss for Marineland Dolphin Adventure and the Georgia Aquarium family, Nellie's legacy continues through the memories created and inspiration she left behind," staff wrote on the Georgia Aquarium blog.

RELATED: Nellie's 57th birthday and 58th birthday celebrations

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