A fish can hunt another fish of same level or less owned by the same account.
When that happens, the prey is burned and the new level of the predator is old_level + prey_level.
Once a fish increases its level to 10 or above it evolves automatically to a shark, at level 100 shark evolve to whale, and above level 1000 whale evolve to kraken.
For this is considered a deflationary project.
Secret Hunters NFT marketplace is Stashh. Besides buying and selling Secret Hunters NFT in this NFT marketplace you can also trade plenty of other NFT projects from Secret Network.
As with any IBC network (built on Cosmos-SDK), the transaction fees are minimal, making the marketplace superior to many other non-IBC marketplaces and non-IBC networks (e.g. Ethereum). What’s more, is that transactions in Stashh are lightning-fast compared to other non-IBC marketplaces and non-IBC networks (e.g. Ethereum and Solana).
The main purpose of Stashh is for you to buy and sell NFTs with ease, at minimal transaction fees. The royalties vary between NFT projects with information disclosed on the specific marketplace page for Secret Hunters NFT.