flightlessness

the flightlessness of the ostrich is a result of its evolution on the african savannah.

scientists study the evolution of flightlessness in certain bird species to understand natural selection.

island habitats often lead to flightlessness due to a lack of large predators.

the kakapo is a rare example of flightlessness in the parrot family.

penguins use their wings for swimming rather than flying, which is a form of flightlessness.

ratites are a group of birds characterized by their flightlessness and flat breastbones.

human arrival on remote islands often caused the extinction of birds with flightlessness.

the bird's flightlessness made it an easy target for introduced predators like cats and rats.

researchers compared the bone density of flying birds with birds exhibiting flightlessness.

despite its flightlessness, the takahe is a skilled runner in the tall grass.

the flightlessness of the dodo contributed to its rapid extinction in the 17th century.

specific genetic mutations have been linked to the development of flightlessness over thousands of years.