Tamed one of these guys, could never get a name for her and all the other amazing poop-related names were taken. Eventually I was trying out swimming with her and it was going pretty well, I wasn't dead yet, got off to go grab a underwater supply drop and had to murder a couple of megs with my ridiculously powerful sword, then realized I was drowning, she was deep in the ocean fighting another meg and I was literally yelling "BUDDY!? FRIEND!!" on repeat, hoping she'd kill the meg so she could come over and save me. I eventually got to the surface on half health, then headed back down to go get her, who was violently spinning towards me. Her name is now "Buddy, friend"