Webbed feet perhaps
The swan's WEBBED FEET used for swimming is an ADAPTATION which is considered a biotic factor.
"Webbed Feet" are feet that have a very thin and tiny "phalanges" They are like a duck or a chicken feet.it means you have feet like a duck where in between each toe theres this little web like thing there
Webbed feet enable them to paddle with less effort.
swimming
The majority of dog breeds do not have webbed feet. Only dogs breed for swimming, like the Newfoundland, have webbed feet.
Webbed feet to help swim
A duck does..
Bats have webbed feet as one of their adaptations. This will help them to float on water when they are swimming.
Mainly webbed feet are seen on swimming birds
They have webbed feet and a long curved neck
Some american bulldogs have webbed feet because it is an adaptation that only got to some parts of the breed.