It wasn't the traditional cornish filling - instead the primates gorged on pasties full of mealworms.
The pretend pasties made out of paper plates dyed with tea and stuffed with shredded paper.
It is always great to encourage the animals to work a little for their food, as in the wild they would have to spend much of the day rummaging for it.
It is so lovely to see our monkeys enjoying their St Piran’s Day celebratory snack. We gave them all-natural pancakes on Shrove Tuesday and we thought we’d see how these went down, and they were thrilled!