Pig the dugong celebrated his 21st birthday with a lettuce cake at Sea Life Sydney Aquarium in Sydney, Australia, November 27, 2019. /VCG Photo

The much-loved dugong was treated to an extravagant cake made entirely of lettuce, lots of belly rubs and scratches as well as some new toys to play with. /VCG Photo

Pig was affectionately named after his piggish eating habits and shares a space in the aquarium with one other dugong. /VCG Photo

Pig was rescued from Forrest Beach in North Queensland when he was separated from his mother at an early age. /VCG Photo