The Cretaceous predator, Meraxes gigas, hints that giant carnivores may have had more uses for their comically small forelimbs than previously thought.
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 ...
C.the giant penguins survived and grew after the extinction of most larger animalsD.the exact reason for giant penguins' extinction has already been found out35.The author wrote this passage in order to ___.A.explain how ancient giant penguins became extinctB.inform people of newly discovered...
Until now, only two fossilised tyrannosaurs with elongated heads had been found, both of which were juveniles. It was unclear whether these were a new class of dinosaur or if they were at an early growth stage, and might have gone on to develop deeper, more robust skulls. ...
Found off New Zealand, the species adds crucial knowledge about this little-known and odd-looking group of deep-sea fish
文章来源本文选自2017年12月16日发表在www.51voa.com网站上 Technology Report栏目中的一篇文章,原文标题为“ScientistsFound Ancient Penguins as Big as Humans"《科学家们发现了和人类一样大的古代企鹅》,作者是 Phi Dierking。语篇解读本文主要介绍了研究者发现了跟人一样大小的企鹅化石,并介绍了与其先后出现的...
Scientists recently found three kinds of animals living two smiles at the bottom of the Mediterranean Sea (地中海). Their small bodies have many cells-each about the size of a large sand-but they are animals. Themost exciting thing about these creatures is that they don't seem to need oxy...
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...
outer limits of huge. They found a connection between large size and raptorial hunting—think of a sperm whale diving down to hunt giant squid—and a connection between large size and a loss of teeth—think of the giant filter-feeding whales that are the largest animals ever ...
and it shows that at that point this animal had already evolved the complicated brain and advanced senses the T. Rex had. But it was in a horse sized animal, and so obviously the brain reorganization happened long before these animals became real giants." ...