The Missouri Department of Conservation marked the 41st birthday of Peanut, a red-eared slider turtle with a peanut-shaped shell, at the Powder Valley Conservation Nature Centre.
The event featured card making, colouring, litter awareness activities and even turtle-style treats like worms and crickets.
Peanut became a symbol of anti-littering after getting trapped in a plastic six-pack ring as a hatchling, which deformed her shell. Conservation officials say her story still reminds people to dispose of litter responsibly.