Large meat-eating dinosaurs attained their great size through very different growth strategies, with some taking a slow and steady path and others experiencing an adolescent growth spurt, according to scientists who analyzed fossilized bones. The researchers examined the annual growth rings in bones fro...
someone grows very quickly.To reach their findings, scientists cut through the fossilized bones of dinosaurs and examined the yearly growth rings of the bones from 11 kinds of theropods, a group of dinosaurs that mainly walked on two legs and include big meat-eating dinosaurs, commonly known as...
Currie PJ (1996) Out of Africa: meat-eating dinosaurs that challenge Tyrannosaurus rex. Science 272:971–972 Google Scholar Currie PJ, Carpenter K (2000) A new specimen of Acrocanthosaurus atokensis (Theropoda, Dinosauria) from the Lower Cretaceous Antlers Formation (Lower Cretaceous, Aptian) ...
thus was included with browsing, though known records of fruit consumption are marked in the dataset’s diet notes column. The consumption of bamboo was considered browsing despite bamboo being a grass, as its lignification makes it structurally similar to wood39. Graminoid, browse, and meat cons...
In order to survive predation by large dinosaurs, what must plants be fast at doing? Why are most food chains limited to 3 to 5 trophic levels? A) The higher the trophic level, the larger the organisms; the larger the organism, the less likely ...
Not quite. Finally the study showed us that the bones actually belonged to a meat-eating dinosaur(恐龙), and 1.name was Sinosauropteryx(中华龙鸟). It was2.than the size of a common chicken which lived about 120 million years ago. It was the 3.time to find fossils of dinosaurs in ...
Dugongs live in the oceans duringthe age of dinosaurs(恐龙). They have funny faces and no frontteeth! Their teeth grow only along the sides of their mouth.Dugongs only like eating plants. They swim slowly so thatthey can eat the sea grass. Dugongs relax during the day, and theyeat ...
plants died first.Then the grass-eating animals died of hunger.Then the meat-eating animals could not find food,either.They began to eat each other,but after a while they died out,too.The dinosaurs,either plant-eaters or meat-eaters,did not live through the disaster(灾难).What a sad ...
The Western diet is high in sugar, fat, oil and meat. By eating these foods, people began to get fatter and sicker. David Tilman says overweight people are at greater risk of noninfectious diseases like diabetes (糖尿病) and heart disease. Unfortunately when people become industrialized, if ...
Dinosaurs lived on Earth more than 60 million years ___ human beings. They lived everywhere on Earth. There were many different ___ of dinosaurs. Small ones, huge ones, many dinosaurs ate plants, ___ some dinosaurs liked to eat meat. 1. A.Indian B.Italy C.Italian D.English 2. ...