A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Did all flightless birds evolve from flying birds?

Best Answers

Evolutionary scientists have discovered that the flightless birds of the world evolved their ground-hugging ways separately. ... Where do they belong? Scientists have debated this question for ... All ratites, including tinamous, probably trace their ancestry back to a flying relative, according to Baker. read more

These evolved flight and then penguins and other birds lost it again. So you go from flightless to flying to flightless again. I am pretty sure that penguins and other such birds split off from a flying ancestor rather than one that never evolved flight in the first place. read more

Perhaps the common ancestor of all ratites was a flightless bird on Gondwanaland that had already split off from its flying relative the tinamou. When the supercontinent broke up, the birds left standing on each bit of land could have evolved into different species. read more

Encyclopedia Research

Wikipedia: