AFP-The findings reveal that the first penguin has gray and reddish brown.
That occurred in the evolution of penguins wing to fly into for a swim. According to the researchers say that the Penguins have lost the ability to fly since thousands and thousands of years ago, the question is why the evolution of a wing of a penguin?
A study conducted has the assumption that penguins are sea birds that have evolved to adapt to the environment so from flying into master swimmer. Penguin swimming requires to compete in a competitive environment, as presented in the Proceedings of the National Academy of Sciences edition of May 20, 2013.
May fly, for some aspects, is an advantage for the penguins who live at the South Pole, for example when escaping predators or when the parade emperor penguin colony that can be up to many days.
An expert in the field of behavioral ecology of Ocean Research Institute-University of Tokyo, "Sato Katsufumi who said that the change was due to evolutionary factors. Said that penguins evolved because of his size larger so as to keep her body in great need of support while diving in the water.
Due to the reason that functions as wings to fly experienced reduced progressively so that the function of wings not to fly but to swim more efficiently and when used to fly quite the opposite. As a result, the ability to fly the last to be lost, so because of this that answers the question why birds penguins can not fly.
Another reason is the large body size makes older penguins diving. At the time of transition from function to function wings of the fly swim occur wasting energy because the energy is used not only for diving but also for the birds to fly penguin consequently could not last long.
Similar delivered by Julia Clarke, study the evolution of birds from the University of Texas at Austin says that no differences were found in ancient penguins
Julia Clarke, a researcher who focuses on the evolution of birds from the University of Texas at Austin, revealed no differences were found in penguins in origin. However, little relevant data that can be used to develop it. This latest discovery could be a key in the explanation of the transition from the model of "wings" to the "fin" penguin.(Gloria Samantha / National Geographic Indonesia)
Sources:
http://www.nationalgeographic.co.id/
www.htysite.com
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