Zaire the gorilla, who turned 40 yesterday, was treated to a birthday cake made by Great British Bake Off runner-up Richard Burr.
The birthday girl looked like she was enjoying the treat in her enclosure at London Zoo.
The 2014 contestant, who won the 'star baker' title five times on the show, said it was a "tough challenge baking a cake for a gorilla".
"It's got grated carrot and parsnips, all sorts of things Zaire likes. I think i've managed to fit her daily diet into this cake," he said.