Influenza A virus subtype H5N1 fossil of an ancestor of modern tropical birds has been institute inwards North America, proving they also used to alive inwards the Northern Hemisphere, nation scientists at the Milner Centre for Evolution at the University of Bath.
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| Purple-Crested Turaco (Tauraco porphyreolophus), Kruger National Park, Mpumalanga, South Africa [Credit: Daniel J Field] |
However, Dr Daniel Field at the Milner Centre for Evolution, in addition to Dr Allison Hsiang from The Swedish Museum of Natural History accept shown that an early on illustration of a modern grouping of African birds called turacos called North America identify 52 1000000 years ago. The Latin advert for turacos translates to "banana eaters" -- a nod to their fruit-eating lifestyles.
Banana eaters are a grouping of unopen to 24 species of brightly coloured medium-sized fruit-eating birds, institute alone inwards Sub-Saharan Africa.
The fossil was outset discovered inwards 1982 in addition to studied 10 years later. However, simply forthwith has the fossil been firmly placed inwards its evolutionary context.
The fossil skeleton non simply shows that banana eaters formerly resided good exterior of their acquaint geographic range, but also that early on banana eaters had long legs, suggesting they may accept been solid pose down dwelling.
Dr Daniel Field explained: "All the modern turacos alive inwards trees in addition to accept relatively curt legs suited for perching on branches.
"The fact that their ancestors had long legs indicates they most probable lived on the ground, suggesting that turacos may accept moved into the trees much later."
This finding ties inwards amongst Dr Field's recent inquiry into how birds transitioned to tree dwelling identify next the asteroid boom that killed the giant dinosaurs 66 1000000 years ago.
Field in addition to Hsiang, publishing their findings inwards the periodical BMC Evolutionary Biology, used the fossil tape in addition to genetic information of modern birds to line the evolutionary tree of life for these birds.
Dr Field added: "It's a actually exciting fourth dimension to live on studying aeroplane evolution. Modern techniques allow us to report 3D scans of fossils inwards neat detail, in addition to sequence large amounts of genetic data.
"This fossil raises nearly every bit many questions every bit it's answered - why are the modern descendants of these birds forthwith restricted to the torrid zone when they were previously institute inwards the Northern Hemisphere too?
"We intend changes inwards climate mightiness live on partly responsible for fluctuations inwards the distributions of these birds, but require to report this further."
Source: University of Bath [June 26, 2018]
Sumber http://archaeologynewsnetwork.blogspot.com
Banana eaters are a grouping of unopen to 24 species of brightly coloured medium-sized fruit-eating birds, institute alone inwards Sub-Saharan Africa.
The fossil was outset discovered inwards 1982 in addition to studied 10 years later. However, simply forthwith has the fossil been firmly placed inwards its evolutionary context.
 |
| Knysna Turaco (Tauraco corythaix), Wilderness, Western Cape, South Africa [Credit: Daniel J Field] |
Dr Daniel Field explained: "All the modern turacos alive inwards trees in addition to accept relatively curt legs suited for perching on branches.
"The fact that their ancestors had long legs indicates they most probable lived on the ground, suggesting that turacos may accept moved into the trees much later."
This finding ties inwards amongst Dr Field's recent inquiry into how birds transitioned to tree dwelling identify next the asteroid boom that killed the giant dinosaurs 66 1000000 years ago.
Field in addition to Hsiang, publishing their findings inwards the periodical BMC Evolutionary Biology, used the fossil tape in addition to genetic information of modern birds to line the evolutionary tree of life for these birds.
Dr Field added: "It's a actually exciting fourth dimension to live on studying aeroplane evolution. Modern techniques allow us to report 3D scans of fossils inwards neat detail, in addition to sequence large amounts of genetic data.
"This fossil raises nearly every bit many questions every bit it's answered - why are the modern descendants of these birds forthwith restricted to the torrid zone when they were previously institute inwards the Northern Hemisphere too?
"We intend changes inwards climate mightiness live on partly responsible for fluctuations inwards the distributions of these birds, but require to report this further."
Source: University of Bath [June 26, 2018]
Sumber http://archaeologynewsnetwork.blogspot.com
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