Webbed feet are used for moving faster through water by aquatic animals.
Ducks are aquatic birds.
Webbed feet are used for moving faster through water by ducks.
what uses webbed feet for moving faster through water?

[1] squids
[2] humans
[3] h2o
[4] trout
[5] octopus
[6] insects
[7] ducks
[8] fish