Bored Ape Yacht Club is a popular monkey series in NFT format. Users can change avatars using so-called "serums". One of these was sold for $ 3,600,000.
"Serums" are called Mutant Serum and are divided into three types: M1, M2, M3. The first two allow you to turn a monkey into a mutant, and the last type - into a mega-mutant. It is the "sera" M3 that are the rarest, and therefore cost more than M1 and M2.
On December 28, Taylor Gerring, co-founder of the Ethereum Foundation, used serum to create a mega mutant. It was purchased from OpenSea on December 26th. The cost was 888.88 ETH, or approximately $ 3,600,000 at the exchange rate at the time of purchase. Now there are 10 mega-mutants in the world from the Bored Ape Yacht Club project.
A source: @Bassjackers