At first I thought this was a peculiar joke but it looks as though it’s on several news sites.
https://news.sky.com/story/amp/artist-abandons-plan-to-starve-piglets-to-death-after-animals-stolen-13322612
I expect that this artist would claim that he cares deeply about animal welfare. But even if he didn’t, I can’t imagine deciding to starve something to death for the sake of art.
It’s possible that he and his friend hatched a plan to have the creatures rescued (so this was more of a thought experiment than anything else). I hope so.