they sure do, i should've posted these at bottom..😆✌️ was going to mention them in the post but didn't want to make it too long.. thnks for bringing that up!

Growing Demand For Underwater Drones
https://steemit.com/technology/@doitvoluntarily/growing-demand-for-underwater-drones

Drone Market Looking Toward The Sea
https://steemit.com/science/@doitvoluntarily/drone-market-looking-toward-the-sea