They have no common because Penguins are much smaller
Okay, this question makes no sense. Swans do not have any flippers. Only seals and dolphins and animals like that have flippers.
because there are gaps between out toes water goes thru them and makes us slower swimmers. FLippers dont have gaps so it makes us swim faster.
no.
http://www.kalpol.com/electronic/snapper/
Swimmers can wear fins/flippers, and paddles to assist in speed.
Mostly Dolphins.
Mostly Dolphins.
They are webbed like the fin of a fish, alot like flippers which makes them ideal for pushing water as they move their feet to swim.
Their down keeps them warm.
The chick makes a sound that the parents can recognize
its silky smooth fur
They increase the area by which a limb can push against water, which makes it possible to swim faster and steer better.