The megalodon, an extinct species of shark that lived approximately 23 to 3.6 million years ago, is believed to have been capable of swimming at speeds of up to 25 miles per hour (40 kilometers per hour) in short bursts. This estimate is based on comparisons with modern large sharks and their swimming capabilities. However, precise speed measurements are difficult to determine due to the lack of direct evidence and the megalodon's large size. Overall, megalodon was likely a formidable predator in its marine environment.
=How fast does a squid swim?==they can swim really fast=
A penguin can swim as fast as a seal
Dolphin swim fast so they can catch there prey
it can swim as fast as a jet
swim well
he can swim just as fast as any other penguin so not very fast then
they swim fast because that's how they are!
fast
It depends on how fast of a swimmer you are.
I would think the megladon because it was bigger and had a way stronger bite force.
a snake can swim about as fast as a row Boat at traveling comfortable pace
they swim fast with many of the dorsal fins.