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Dinosaurs were large and small creatures that inhabited the Earth millions of years ago. Feathered dinosaurs had heavy bones which prevented them from flying. Those that did fly actually resembled birds but are often included in the dinosaur category.

Pterodactyls were flying reptiles in the Mesozoic era. They were as large as giraffes with wingspans up to twenty five feet. Archaeopteryx lived during the late Jurassic period and had brains and feathers like a bird but no large breastbone. Only the size of a crow, they sported a large, bony tail with feathers.

Many lived during Read the rest of this entry »

Not all dinosaurs were meat eaters. Just like people and animals of today, some ate meat, and some ate just plants. Approximately 65 percent of all dinosaurs were plant eaters (herbivores), while only 35 percent ate meat (carnivores). Carnivores usually had large jaws and sharp teeth. They also had long strong legs so they could be quick enough to catch their prey. One of the most notorious meat eaters was the Tyrannosaurus Rex. Other carnivores include the Velociraptor, Read the rest of this entry »

Around 65 millions years there is an iridium glitch in the fossil record. Scientists estimate that about 50 percent of all life on earth died out at the same time including dinosaurs like T. rex and Triceratops as well as plants and tiny marine organisms. This is known as the Cretaceous-Tertiary Extinction or K-T Event. Incidentally, it’s “K” not “C” because geologists use “K” as shorthand for Cretaceous. Many scientists believe the iridium layer or K-T boundary found all over the world is evidence of a gigantic asteroid hitting the earth since iridium Read the rest of this entry »

Did dinosaurs live all over the planet? There are many questions surrounding the existence of dinosaurs, how and where they lived as well as how they became extinct. First it’s important to consider that yes, skeletal remains of dinosaurs have been found all over the world. However the question remains if they actually lived in the areas where the bones have been found or if the bodies traveled along with the glacier to end up at there final resting place.

However, it is known that dinosaurs did live in Read the rest of this entry »