I don't see how strong legs and a tail would help keep a Rex's head above water for breathing purposes.
There are plenty of other carnivorous dinosaurs besides
Tyrannosaurus rex. So a
T. rex may not have been that great at swimming. Big whoop. There's still
Spinosaurus, Allosaurus, Deinonychus, Utahraptor, Deltadromeus, Dryptosaurus, Dilophosaurus, Dick Clark, etc.
support your head above water with tiny arms?
This is something known as the "primate bias". Simply put, humans have a hard time envisioning how something can be effective without long arms. Besides, arms aren't necessary for swimming.
Ia! Cthulhu fhtagn!
Proudly attempting to Google-Bomb Kent "The Idiot" Hovind's website
Idiot