This paper considers the role of air currents as dispersal vehicles of these flightless arachnids.
Since these insects are brachypterous and flightless, the significance of these variations are obscure.
Neither club nor the more crumpled forms of curly can fly, though the flightless forms can ' skip ' several centimetres at a time.
They include giant tortoises, of which there are some 80,000, and apparently it is the last breeding place of the flightless rail.
The duck are flightless during this season which is thus the period of danger.
The ratites are large flightless birds, and include ostriches, rheas, cassowaries, kiwis and emus.
The great spotted kiwi, as a member of the ratites, is flightless.
Originally thought to be one of the earliest members of flightless birds, alvarezsaurids have recently been regarded as more basal theropods.
