一、完形填空What's the largest animal on the earth now?It's the blue whale. An adult blue whale can be23-30 meters long from head to 1 . That's as long as an 10-storey(层) building! And it can 2as much as 150 tons(吨). That's as heavy as 112adult giraffes! A blue whale...
8 Gail Laule, a consultant on animal behavior, speaks of Orky, a killer whale, she knew. "Of all the animals I've worked with, he was the most intelligent," she says. "He would assess a situation and then do something ba...
The dinosaurs wentextinctabout 65 million years ago, at the end of theCretaceous period, which was a time of high volcanic andtectonic activity. There are many theories why the extinction occurred. The most widely accepted theory is that an asteroid impact caused major climate changes to which ...
The extinction event that killed the dinosaurs was worldwide. It affected many plant and animal groups, both on land and in water. Dinosaurs were only a small part-the disappearance of other living things was so great that scientists knew about the extinction 30 years before the first dinosaur...
The Earth was once "ruled" by a kind of animal called dinosaur from 65 to 230 million years ago. Then the dinosaurs disappeared with only huge bones, eggs or footprint being 1.What did the dinosaurs look like? Why did they die out? Scientists spent 10 years collecting a lot of ...
Answer explanation:If you read thoroughly, the author in the given paragraph mentions that“identification of this plan makes it possible to differentiate dinosaurs from any other types of animal, even other archosaurs.”Also,“This unique combination of features gave dinosaurs what is known as a ...
Animals are disappearing at hundreds of times the normal rate, primarily because of shrinking habitats. Their biggest threat: humans.
But by the 1990s, other experts had convincingly made the case that, instead of robbing the nest, the Oviraptor was probably taking care of the eggs.You see, dinosaurs' closest living relatives—birds and crocodiles—display nesting behavior.And dinosaur fossils have been found in postures that ...
The Earth is over 4 billion years old and the dinosaurs were dominant some 200-250 million years ago. It is safe to say that there was extensive life present on Earth before the dinosaurs as some of that life had to evolve into the dinosaurs....
There was an abundance of animal species that lived during the Permian period, before the Permian extinction. In the sea, there were brachiopods,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...