While on earth they seem useless in water, penguin feathers give an admirable dexterity of movement efficiency.
However, the arms are believed to thousands of years ago were doing the penguins were among the best birds in flight, but because of evolution, became feather, conditioning species in a life at sea, between walking and swimming.
The reason why this should happen evolution, according to scientists associated with the penguins body itself.
Like birds, due to their size and structure, they must spend 31 times more energy than other birds to survive, something that forced to consume more food, making life without competitive in the wild, especially in terms of gradual reduction of food.
For this reason, this skill was developed by scientists, constitutes one of the most remarkable evolutions in history. "Like many people, I asked myself why penguins lost the ability to fly," said John Spekman, professor of the University of Aberdeen.
"However, our biomechanical model is built, which simulates the evolution of the species occurred, is able to explain our doubts. For example, penguins "Empire" walk for 60-70 kilometers through the day, becoming easy prey for mammals that surround them. Through flight, they will only walked this distance for a few hours, but if it occurred, the amount of food to be consumed would be so great that very unlikely could be obtained, leading to the extinction the species. "
Evolution of penguins, one of the most extraordinary stories
Penguins have long been the subject of attention from the scientific community, since they are the only birds that can fly fail.
However, the reason is simple, penguins are specialized in swimming and no living being is able to fly even in the float together.
Canadian researchers closely monitored the behavior of some species occurring in the Antarctic and focused primarily on small arms penguins.
While on earth they seem useless in water, penguin feathers give an admirable dexterity of movement efficiency.
However, the arms are believed to thousands of years ago were doing the penguins were among the best birds in flight, but because of evolution, became feather, conditioning species in a life at sea, between walking and swimming.
The reason why this should happen evolution, according to scientists associated with the penguins body itself.
Like birds, due to their size and structure, they must spend 31 times more energy than other birds to survive, something that forced to consume more food, making life without competitive in the wild, especially in terms of gradual reduction of food.
For this reason, this skill was developed by scientists, constitutes one of the most remarkable evolutions in history. "Like many people, I asked myself why penguins lost the ability to fly," said John Spekman, professor of the University of Aberdeen.
"However, our biomechanical model is built, which simulates the evolution of the species occurred, is able to explain our doubts. For example, penguins "Empire" walk for 60-70 kilometers through the day, becoming easy prey for mammals that surround them. Through flight, they will only walked this distance for a few hours, but if it occurred, the amount of food to be consumed would be so great that very unlikely could be obtained, leading to the extinction the species. "
While on earth they seem useless in water, penguin feathers give an admirable dexterity of movement efficiency.
However, the arms are believed to thousands of years ago were doing the penguins were among the best birds in flight, but because of evolution, became feather, conditioning species in a life at sea, between walking and swimming.
The reason why this should happen evolution, according to scientists associated with the penguins body itself.
Like birds, due to their size and structure, they must spend 31 times more energy than other birds to survive, something that forced to consume more food, making life without competitive in the wild, especially in terms of gradual reduction of food.
For this reason, this skill was developed by scientists, constitutes one of the most remarkable evolutions in history. "Like many people, I asked myself why penguins lost the ability to fly," said John Spekman, professor of the University of Aberdeen.
"However, our biomechanical model is built, which simulates the evolution of the species occurred, is able to explain our doubts. For example, penguins "Empire" walk for 60-70 kilometers through the day, becoming easy prey for mammals that surround them. Through flight, they will only walked this distance for a few hours, but if it occurred, the amount of food to be consumed would be so great that very unlikely could be obtained, leading to the extinction the species. "