首頁最新消息簡介攝影畫廊讀經日引網上資源網上下載網上討論區聯絡我們
聖經金句

你要盡心、盡性、盡力愛耶和華你的神。
申命記6:5



 
聖經查詢
聖經查詢(新版)
關於我們
目錄導覽
音樂詩歌點播
文化天地
時事論壇
世界經濟
育博通
珠璣集
幽默
News
時代論壇报
山行文化出版社
文藝園地
健康資訊
中美友好協會
美國新聞
南粵之窗
Amazing Qingdao - 今日青島
Panda Mania 熊来疯
教會機構專欄精選
網上奉獻與支持
故障申告
聯絡我們
網站維護

設為首頁
加入「我的最愛」
瀏覽流量統計
人數: 2,141,139 
頁數: 29,017,271 
下載: 9,965 
Since 11/2005


訂閱電子報

訂閱電子週報
自訂閱名單移除
電郵Email:



  
   

Bookmark and Share   
 
Expert says evidence of giant pandas' European origins lacking
1/13/2018


BEIJING, Jan.11 (Xinhua) -- Giant pandas are commonly believed to have originated in southwest China's Yunnan-Guizhou Plateau. But 10-million-year-old tooth fossils found in Hungary have raised new doubts about the black and white bear's ancestors.

According to a paper published in Geobios last October, Canadian and French researchers have discovered the teeth of an ancient animal that resembles a modern-day giant panda during excavations in the Hungarian town of Rudabanya.

By comparing the dental micro-wear and comparing the shape, structure and wear patterns of the teeth with those of other bears, scientists concluded the creature, called Miomaci panonnicum, might have had a diet similar to modern giant pandas, and therefore pandas may have originated in Europe, rather than Asia.

But Chinese paleontologist Huang Wanbo said the conclusion is not well-grounded.

"The fossil they found is rather small, and it lacks the very specialized dental anatomy found in modern giant pandas," said Huang, researcher of the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences.

Today, pandas only live in China's southwestern subtropical bamboo forests. The animal is considered a "national treasure" in China, yet few people really know how the giant panda evolved.

Since giant pandas are confined to China, many researchers had assumed China to be the origin of the panda family. Some fossils support this idea.

In the 1980s, Chinese scientists discovered dental specimens of the primal panda in Lufeng in China's southwestern Yunnan Province. The fossils, dating back 8 million years, suggest the primal panda was the oldest known panda and gave rise to the panda line.

However, in 2012, the 11.6-million-year-old teeth of an ancient animal were discovered in Spain. Some scientists claimed the teeth belonged to Kretzoiarctos beatrix, the oldest known direct ancestor of the giant panda, and they believed the giant panda's ancestors originated in Europe before migrating to Asia. The newly found Miomaci teeth also became evidence for the theory.

"It's true that the giant pandas' premolars and molars have become enlarged and very broad compared to bear teeth to help crush bamboo. Teeth found in Spain and Hungary have shown such features. But a close look at the dental remains of the primal panda will tell us how different they are from their European cousins -- smaller teeth with shorter cusps and wrinkled crowns," said Huang.

Huang said the current findings could only prove that both Miomaci panonnicum and Kretzoiarctos beatrix are an extinct "cousin" of the modern panda, rather than a direct ancestor.

"The specimens found in Spain and Hungary suggest they are at different evolutionary levels than the primal panda. They have nothing to do with modern pandas in China. You could say there might have been pandas that originated in Europe but became extinct later. We need more evidence for such a claim, though," said Huang. Enditem

 


相關訊息

Giant pandas entertain Guiyang residents 
 

Digitalization brings huge opportunities, risks, says Siemens Digital Factory CEO Jan Mrosik 
 

Camphor oil enriches residents 
 

Wow! Super-sized mosquito found in SW China's Sichuan 
 

World Reading Day in Chengdu 
 

City to be Hot Tourist Destination in China during May Day Holiday, Says Tuniu 
 

Two Giant pandas meet public in Guiyang after returning from overseas 
 

First batch of 5G terminals to be released next year 
 

"Pandas" introduces beautiful life saved by international cooperation 
 

China Focus: Sichuan's fight to protect the environment 
 

Spring Outing in Longquanyi: Cars in the Make and Flowers in All Colors 
 

US Media Delegation Has a Real Taste of Sichuan 
 

Chengdu welcomes unicorn, invests in more to follow 
 

Healing moments: Give me a hug 
 

Across China: Money falls from trees in southwest China 
 

本目錄中最多閱覽的文章

“Hello 2018” Greetings from Chengdu! 


Video - Are you a GENUINE panda-lover? 


Looking forward to snowball fights? 


Panda pair arrives in Finland after long flight from Chengdu 


Red Leaves Sights around Chengdu 


   Email: sino.american2020@gmail.com    Powered by Web4Jesus (W4J) Ministry