Question

Wings of ostrich and emu have become weak over the years .Justify.​

Answer 1

Answer:

Flightless birds are birds that

through evolution lost the ability

to fily[1] There are over 60 extant

species[2] including the web

known ratites (ostriches, emu,

cassowaries, rheas and kivwi) and

penguins. The smallest flightless

the bird is the Inaccessible Island rail

(length 12.5 cm, weight 34.7 g). The

largest (both heaviest and tallest)

flightless bird, which is also the

the largest living bird is the ostrich (2.7

m, 156 kg). Ostriches are farmed for

their decorative feathers, meat and

their skins, which are used to make

leather

Explanation:

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