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Ducks are birds, and actually they can fly quite well. However, I believe your question is why can ducks swim when most other birds can't. The reason for this is evolution - ducks and other waterfowl like swans and loons have evolved into a niche that involves them eating directly from the water. Part of this evolution involved developing oil glands or preen glands on the base of their tails; waterfowl like ducks preen themselves constantly to spread this oil on their feathers to keep themselves waterproof so they can float on the water. Most non-waterfowl birds fly because they have evolved into a niche that involves them eating or hunting on the wing. However, I will note that not all birds can fly - penguins, ostriches, emus, rheas and kiwis all can't fly, but they are birds.
What else can I help you with?
What are the similar characteristics of the sterna maxima and the anas playthrhchos?
The Royal Tern and the Mallard Duck respectively are both birds that fly and swim.
Why can birds fly and ducks swim?
They are different species of birds well ducks fly to sorry SOME kind of duks fly
What are the names of birds that cannot fly but runs faster?
Such birds include Ostritch, Duck and Hen.
How is a fish and and bird different?
Fish swim and birds fly.
How is a fish and a bird different?
Fish swim and birds fly.
How ducks protect themselves?
they fly away or they swim away or pray do god ... No. They duck!
Did Ben Stiller have work done on his teeth?
Do birds fly, fish swim
How pigeons can fly better than duck?
This is because the duck has the shape as a boat that helps it to swim and it does not have hollow bones. A pigeon can fly because it has hollow bones to make it light and its body is like a ship
Why does a duck have two feet?
All birds have 2 feet so they can walk. So they can walk and swim properly!
What type of birds fly in the rain?
Most birds are capable of flying in the rain, but the penguin is most likely since it can swim
What is the difference between fish and birds?
Fish are aquatic vertebrates that have gills for breathing and fins for swimming, while birds are feathered, warm-blooded, egg-laying vertebrates with wings for flying. Fish live in water, while birds predominantly live on land and in the air.
What kind of duck can fly above clouds and another kind that can't?
There are no ducks that can fly above the clouds. There are no birds in fact, that can fly in the clouds or above them. This is because birds consider clouds to be obstacles that get in the way of their flight patterns.
