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.