A video has surfaced showing billionaires Elon Musk, Mark Zuckerberg and Jeff Bezos turned into robot dogs at the Art Basel Miami Beach show in US. The robots, part of the 'Regular Animals' artwork by digital artist Mike Winkelmann, poop certificates of authenticity for NFTs. All robots were sold for $100,000 (₹90 lakh) each, except Bezos', which wasn't for sale.