Most of the DNA was similar to moss, algae and invertebrates found in Antarctica, but some of it could not be identified. "The results from this study give us a tantalising glimpse of what might live beneath the ice in Antarctica -- there might even be new species of animals a...
Remains of Discokeryx xiezhi- a relative of modern giraffes that lived about 17 million years ago have been found in northern China. Their unusual features(特征) have offered new ideas to why these plant-eating animals developed their unusual shape.The giraffe's neck is often used to show a...
The Cretaceous predator, Meraxes gigas, hints that giant carnivores may have had more uses for their comically small forelimbs than previously thought.
According to the Seaside Aquarium, a 7.3-foot sunfish was found on Gearhart Beach, north ofSeaside, Oregon, on June 3. "Initially, this large, strange looking fish was creating quite a stir on social media and though it was stormy, folks were flocking to the beach to see this unusual ...
C. The larger animals in or near the water. D. Lack of food. 相关知识点: 试题来源: 解析 1.A 细节理解题。第一段第三句表明,科学家估计它比克罗斯比重9 千克,且根据第二段第一句可知,在新西兰发现的企鹅化石比其他任 何古老的企鹅都大。故应选A项。 2.C 细节理解题。第一段第三句说明...
The second annual State of the World’s Plants from the Royal Botanic Gardens, Kew, also revealed nine new species of climbing vine Mucuna, used in the treatment of Parkinson’s disease, have been found. Seven new species of Aspalathus, which provides redbush or rooibos tea, have been...
These newer animals may also have hunted the giant penguins.独家原创试题W * fossil /'fDsl/ n.化石 ** reveal /rI'vi:l/ v.显露禁 marine /ma'ri:n/ adj. 海洋的㵘 mammal /'maeml/n.哺乳动物1. Why is the Canadian hockey player Sidney Crosby mentioned in the first paragraph? A. To...
Rex had. But it was in a horse sized animal, and so obviously the brain reorganization happened long before these animals became real giants." Sues and a team of palaeontologists, led by Steve Brusatte at the University of Edinburgh, studied a collection of tyrannosaur fossils found between 1...
The CAPN1 gene has been selected as a 'candidate gene' for meat quality in many domestic animals, including chickens. Consequently, the aim of our study was to identify new polymorphisms in the promoter region of the CAPN1 gene in broilers and to investigate their impact on CAPN1 transcript...
a non-flying seabird like the penguin would have threatened by larger animals living in or near the water, us they competed for the same food. But after the extinction killed most of the larger animals, the ability to fly became less important. This helped penguins survive and grow. The qu...