A dolphin tank in the restive eastern Ukrainian city of Donetsk has added a new performer, one whose name it hopes will serve as a symbol of hope for the troubled region's future: Peace.

Trainer Olga Nenko of the Nemo dolphinarium said the baby dolphin was born on the eve of May Day, which first inspired the idea of naming him in honor of the Soviet slogan, "Peace. Work. May."

Nenko said current travails in eastern Ukraine, where pro-Russian insurgents have for weeks been seizing buildings, gave additional poignancy to the newborn dolphin's name — "Mir" in both Russian and Ukrainian.

Only a few customers attended Nemo's dolphin performance Tuesday afternoon, a turnout that company representatives said might have been down to tensions in the city.