It most certainly swam

Maybe it sunk like a hippo

Yes, it could most certainly swim, but not below the surface that’s for sure.

How would it be crushed

Maybe if it was in the deep ocean

The article is worth a read.

Sereno is definitely a trustworthy paleontologist. I wouldn't question his methods. Another study was brought up that attempted to refute Sereno's study, but it failed.

Yeah but something new could come up

It's possible, but for now, Spinosaurus is not an aquatic dinosaur.

Semi aquatic but not fully aquatic

Wrong post