Both are vertebrate animals with cellular differentiation. At the same time, they both have internal sexual reproduction, and produce eggs instead of being pregnant and giving birth to their young.
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They both have webbed feet and can swim. They both live in water but breathe air. They both eat bugs. They are both vertebrates. They both lay eggs.
I'm sorry to say that there are no simerlarities between a duck and and frog because frogs are of the reptiles kind and ducks are ducks they have no colouring the same apart from if you see one of those male ducks with the green thing on their head then yes and i supose they do make the most gayest noise
Ostrich is a large Flightless Birds and ostrich have a long neck.
Duck is many different size and colour and they have no long neck etc.
both are birds
both can't fly
what is the similarities between the ulna and the radius
similarities
Both look like a duck!
similarities between kangaroo and human