Four-Winged Bird Discovered by Chinese Paleontologists# Animals - 动物园
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Four-Winged Bird Discovered by Chinese Paleontologists
http://frenchtribune.com/teneur/1316758-four-winged-bird-discov
A study published in the journal Science has shed light on 11 four-winged
fossil specimens that lived about 130 million years ago.
It says there is strong evidence, after recently excavated primitive bird
species, that the primitive species were available with four wings.
According to the Chinese paleontologists, modern-day birds have evolved from
the pre-historic birds.
After some time period, "basal bird" species evolved as their hind-limb
feathers were replaced with scales and in turn. They exhibited these
birdlike characteristics.
Speaking on the four-winged creatures, researchers have said that these four
-winged birds were in the process of getting ready to use their hind limbs
for terrestrial locomotion.
Chinese discoverers have found that these species had started to turn in an
era when dinosaur species named Microraptor and Sinornithosaurus lived.
Though the presence of four-feathered winged birds has been proven by the
Chinese paleontologists, their aerodynamics is still not confirmed by them.
A research team headed by Zheng Xiaoting, of the Shandong Tianyu Museum of
Nature, have attributed this to the rigid vanes and curved feathers in some
dinosaurs and the basal birds. According to them, they are "aerodynamic in
function, providing lift, creating drag and/or enhancing maneuverability,
and thus played a role in flight". A further research is stated to be
carried in this direction.
http://frenchtribune.com/teneur/1316758-four-winged-bird-discov
A study published in the journal Science has shed light on 11 four-winged
fossil specimens that lived about 130 million years ago.
It says there is strong evidence, after recently excavated primitive bird
species, that the primitive species were available with four wings.
According to the Chinese paleontologists, modern-day birds have evolved from
the pre-historic birds.
After some time period, "basal bird" species evolved as their hind-limb
feathers were replaced with scales and in turn. They exhibited these
birdlike characteristics.
Speaking on the four-winged creatures, researchers have said that these four
-winged birds were in the process of getting ready to use their hind limbs
for terrestrial locomotion.
Chinese discoverers have found that these species had started to turn in an
era when dinosaur species named Microraptor and Sinornithosaurus lived.
Though the presence of four-feathered winged birds has been proven by the
Chinese paleontologists, their aerodynamics is still not confirmed by them.
A research team headed by Zheng Xiaoting, of the Shandong Tianyu Museum of
Nature, have attributed this to the rigid vanes and curved feathers in some
dinosaurs and the basal birds. According to them, they are "aerodynamic in
function, providing lift, creating drag and/or enhancing maneuverability,
and thus played a role in flight". A further research is stated to be
carried in this direction.
