Dinosaurs

Dinosaurs were reptiles that lived 245 to 65 million years ago. Some ate plants, some ate meat, lots ate each other. They are not lizards, even though the name dinosaur means terrible lizard. They could not fly or live in the water (so pterodatyls, plesiosaurs, icthyosaurs, etc were not dinosaurs). They varied greatly in size, some were longer than tennis courts, some were no taller than your knee.

Some dinosaurs did have spines but most did not. The main body coverings of most dinosaurs were scales and feathers.

Early man was 65 million years after the era of dinosaurs.

yes they did. they were infact a lot bigger though. maybe by an inch or as big as your hand.. hope this helps. also go onto you tube and type in *wilksey10*. then click on *freak show boy* that is me!!!! Yes, indeed, they did. They were around before the dinosaurs and as you obviously know, they are around now.

- Anonimus Genause.

It was a herbivore because it was formed with flat teeth not sharp teeth, which would be on a carnivore.Also,you wouldn't expect a HUGE animal like a Brontosaurus to run and catch another animal easily like a T-Rex would.

Dinosaurs were alive.

very old fashioned,highly traditional businessmen have been called pin-striped dinosaurs-as if their ideas are from another,ancient era.

I fink it means 'big lizard' but I'm not sure.

No modern bird is more closely related to dinosaurs than any other.

No. some just had beaks

The earliest dinosaurs appeared in the Mesozoic era about 248mya-65mya.

Snakes appeared about 70 million years ago, just before the dinosaurs died out. Although snakes were huge then, the biggest recorded was 36ft long. Remember, any snake that lives on land that is longer than 50 ft is too big to move and breathe.

Jurassic period? Called by who,the security guards?

Some of the smallest may have lived in the trees, but if the question means "Did dinosaurs live in the oceans?" the answer is no. There were sea-dwelling reptiles, but these weren't dinosaurs.

Dinosaurs lived during the Mezozoic era, between 251 million years ago and 65.5 million years ago. The Mezozoic era was split into 3 periods: the Triassic, Jurassic, and Cretaceous. Dinosaurs became extinct 65.5 million years ago, at the end of the Cretaceous period.

predators only need to see forward to chase their prey, prey needs to look out for predators

• Dinosaurs probably had a high metabolism, allowing them to have an active lifestyle.
• They had an erect posture, giving them very efficient locomotion.
• Dinosaurs had air sac structures that allowed for a very efficient breathing system; like birds, they could absorb oxygen while inhaling and while exhaling. This system allowed them to also stay cooler.
• Dinosaurs had a wide variety of body plans for various lifestyles. Ankylosaurs had heavy armor and sometimes even tail clubs, making them nearly impossible to attack. Some dinosaurs were built for speed. Sauropods were too big for most predators and could reach food that other herbivores couldn't.
• Theropod dinosaurs had hollow cavities in the skull to make the head lighter, and many of them had a "honeycomb" structure to the bone, which also made them lighter.
• Some theropod dinosaurs had feathers, which could have been used for insulation or to attract mates.

yes because dinosaurs are gigantic lizards and lizards are still living in the world

When Dinosaurs Ruled the Earth was created in 1970.

Only some meat eating dinosaurs hunted in packs. Those that did had an advantage, because as a team, they could hunt larger prey more easily, effectively, and safely. Then they could share the more abundant food.

Probably the question of WHEN it lived would be more appropriate than where. However, I can tell you that most of its fossils are found in the western desert areas of North America, many in North-Central Texas, New Mexico, and the four corners areas. Exactly what part of Pangea that might have been at the time they were around, I fear I don't know.

Dimetrodon was NOT a dinosaur. It was a mammal-like reptile - a type classified as a Synapsid - and was probably at the top of the food change during its existence. Those animals lived many long years prior to the emergence of the dinosaurs, hitting their peak in the early Permian period (the last period of the Paleozoic Era) and dying out maybe 45 million years before the first little dinosaurs showed up. It died out before the end of the Permian period, and that period ended with a terrible crash. 95 percent of life on this planet was eliminated in the deadliest mass extinction ever to strike living things on this earth and it closed both the Permian period and the Paleozoic Era.

The initial period of the Mesozoic Era - the era of the dinosaurs - was the Triassic. It began quietly. Very few animals or plants survived the calamities that annihilated so much of the Permian life, and the complete re-population of the earth and its oceans took a few million years. The first dinosaurs didn't appear until the Triassic was well underway and they didn't hit their heyday until the Jurassic.

That depends. The "flying dinosaurs" shown in dinosaur movies were not actually dinosaurs but pterosaurs, a related group of reptiles. They are often depicted as having eaten fish or insects depending on the species.

The true flying dinosaurs are birds. These animals have a wide variety of diets ranging from seeds and insects, to nectar, to small vertebrates.

People have been finding dinosaur fossils for hundreds of years, probably even thousands of years. There are references to "dragon" bones found in Wucheng, Sichuan, China (written by Chang Qu) over 2,000 years ago; these were probably dinosaur fossils.

Much later, in 1676, a huge thigh bone (femur) was found in England by Reverend Plot. It was thought that the bone belonged to a "giant," but was probably from a dinosaur. A report of this find was published by R. Brookes in 1763.

The first dinosaur to be described scientifically was Megalosaurus in 1824, by William Buckland. Buckland (1784-1856) was a British fossil hunter and clergyman who discovered some Megalosaurus fossils in 1819 and named the reptile in 1824. It was the first dinosaur ever described scientifically and first theropod dinosaur discovered (this is all in hindsight, because the dinosaurs had not yet been recognized as a separate taxonomic group - the word dinosaur hadn't even been invented yet).