He is michael phelps Jr.
Dolphin swim fast so they can catch there prey
They move their tails up and down so fast that it makes swim fast.
he can swim just as fast as any other penguin so not very fast then
Well you can consider that they swim fast their ill tempered so when made they swim faster.
yes
Harp seals need to be able to swim fast so that they can escape predators as well as to catch fish to eat.
to escape from its predator so it need to swim very fast to escape from them or to swim fast to catch preys :-)
So that they can escape predators.
computer
Yes. Penguins can swim, they are exellent at it. Though the cannot fly.
Harp seals need to be able to swim fast so that they can escape predators as well as to catch fish to eat.
They have tiny orange feet