Dinosaurs are a varied group of animals from taxonomic, morphological and ecological standpoints. Birds, at over 9,000 living species, are the most diverse group of vertebrates besides perciform fish.[3] Using fossil evidence, paleontologists have identified over 500 distinct genera[4] and more than 1,000 different species of non-avian dinosaurs.[5] Dinosaurs are represented on every continent by both extant species and fossil remains.[6] Some are herbivorous, others carnivorous. Most dinosaurs have been bipedal, though many extinct groups included quadrupedal species, and some were able to shift between these body postures. Many species possess elaborate display structures such as horns or crests, and some prehistoric groups developed skeletal modifications such as bony armor and spines. Birds have been the planet's dominant flying vertebrate since the extinction of the pterosaurs, and evidence suggests that egg laying and nest building is a trait shared by all dinosaurs. Many prehistoric dinosaurs were large animals—the largest sauropods could reach lengths of almost 60 meters (200 feet) and were several stories tall—and while many extinct theropods were quite large, a majority evolved very small sizes, especially among birds and other advanced groups.
Although the word dinosaur means "terrible lizard," the name is somewhat misleading, as dinosaurs are not lizards. Rather, they represent a separate group of reptiles with a distinct upright posture not found in lizards. Through the first half of the 20th century, before birds were recognized to be dinosaurs, most of the scientific community believed dinosaurs were sluggish and cold-blooded. Most research conducted since the 1970s, however, has indicated that ancient dinosaurs, particularly the carnivorous groups, were active animals with elevated metabolisms and numerous adaptations for social interaction.
Since the first dinosaur fossils were recognized in the early 19th century, mounted fossil dinosaur skeletons or replicas have been major attractions at museums around the world, and dinosaurs have become a part of world culture. Their diversity, the large sizes of some groups, and their seemingly monstrous and fantastic nature have captured the interest and imagination of the general public for over a century. They have been featured in best-selling books and films such as Jurassic Park, and new discoveries are regularly covered by the media.
QUESTIONS
1. What is The Animal?
The Animal is Dinosaurs
2. How does it look like?
Allosaurs | Stegosaurs | Tyranosaurs | Brachiosaurs | Brontosaurs |
Canibal | Long tail | Carnivore | Long neck and tail | Long Neck |
Round eyes | Short Neck | Fierce | Big Stomach | Big and Long Gut |
Rather Small | Spiky | Two Small front legs | Short legs | Hammer like head |
3. What kind of food does it/do they it ?
Meat, egg, other Dinosaurs (Canibal), Grass, Moss
4. What it's differebt with other animal ?
Dinosaur has big body and life before century. That's make Dinosaurs different with other animal.
5. What's your opinion about that animal ?
In my opinion, Dinosaurs is the big animal. It eat meat , probably eat other Dinosaurs (Canibal). I think
Dinosaurs is the biggest land animal that ever existed in the world.
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