Both birds and fishes show streamlined bodies but only birds are able to fly.Why?
Although both birds and fishes have streamline body, birds have lots of other features that help them to fly. They are
- The fore limbs of birds are transformed into wings which help them to fly.
- Their body weight is very light due to the presence of hollow bones which is not present in fishes.
- Toothed jaws are transformed into light weight beak to reduce body weight.
- Powerful flight muscles are present on wings which help them to fly.
yes you are write but there are many adoptation in bird which fishes dont have like the bones of birds are hollow there body is enough light to be lifted by wings as the adoptation comes the main thing is that fishes are adopted to to live in water an d they have gills whereas birds have lungs.