Feathered dinosaurs

so many different theories of how the dinosaurs dissapeared. There are many different ways to explain the extinction which took place 65 million years ago. One of the main reasons was the possibility of a sudden change in the climate or atmosphere. For instance, a nearby supernova explosion could heat up the upper atmosphere, disturbing the ozone layer. Disturbing the ozone layer could produce large ice clouds which would cool the environment. If the dinosaurs were cold blooded they would not…

Even so, the general trend across the data presented is that dinosaurs were either endotherms or ectotherms with alterations from what we see today, or had their own method of thermoregulation which lies somewhere between the two. Since it’s difficult to obtain samples of dinosaurs, whether it be from bone isotope compositing, ranges of growth/age of different species or bone structure, therefore it’s difficult to extrapolate…

THEIR ARE MANY MANY THEORIES ON WHY THE DINOSAURS BECAME EXTINCT THE CAUSE OF THIS MASS EXTINCTION VARIES WIDELY. Some of those theories are that Years ago an asteroid crashed onto Earth’s surface. Mountains formed within minutes. In America, a tsunami hit covering plants and animals, under piles of rubble. Debrie was scattered, The planet was broken down and it stayed that way for years. But the most clear explanation to why the dinosaurs rapidly died out with the Mose scientific evedence is…

Almost 4.5 billion years ago, the Earth, newly formed, had possibly the hottest climate in the planet’s extensive past. Temperatures were scorching, enough to liquefy rocks. As radioactive elements located in Earth’s core decay, they generate heat and pressure shoving molten rock toward Earth’s surface. Along with bringing molten rock to the surface, volcanoes also released heat and emitted carbon dioxide into the atmosphere, initiating the greenhouse effect which leads on to global warming.…

of dinosaurs to evolve, Unaysaurus tolentenoi was a prosauropod found in the Caturrita formation in what is now Brazil. In life, it would have reached lengths of up to 2.5 meters (about 8 feet) long, weighed up to 70 kilograms (about 154 pounds) and, reached a height of about 80 centimeters (about 2’ 7”). Its genus name means “black water lizard” while the species name comes from Tolentino Marafiga, who discovered the remains on the side of the road. Being the eleventh species of dinosaur…

new scientific discoveries today. It all begins in northern China, where amidst the country's rich, volcanic conditions for fossil-finding, Professor Sun Ge and his team first unearth the Archaefructus fossil from an ancient lake in a region where dinosaurs once roamed. Sun Ge brings his amazing find to paleobotanist David Dilcher at the University of Florida, who has been hunting for a fossil like this his entire life. There were many evidence used in the film to determine the evolutionary…

The Six Great Extinctions Extinction is just another word used for the dying off of one species or of many species. Since the beginning of time there have been five mass extinction and then some smaller extinctions. Either big or small, they play a huge role in the evolution of the species around us. Whether they were a common ancestor, or a close relative to an organism, they still helped the organisms we know today evolve and adapt to the environment that we now share. During the extinction…

learn more about those civilizations. In 1992 a crater under the Yucatan Peninsula. It was first thought that whatever landed here ended the dinosaurs. It indicated that it may have also resulted in the climate change during the ice age. It supposedly changed dramatically during a time period as short as a year. It has given us new leads on what killed the dinosaurs and ended the ice age.…

length and shape of the horns and the size and structure of the skull. However, scientists have been wary of the evolutionary relationship between the two Triceratops species. It was said that the two species could have been descendants of an extinct dinosaur, evolving as their ancestor's evolutionary tree which was split into two branches, in a process known as cladogenesis. But they argued If this were the case, both species would have lived at the same time, at perhaps different locations,…

Since the first dinosaur bone was unearthed and mounted in a museum for the world to view, people have been fascinated by the gigantic ancient beasts that once ruled the world. Soon movies brought the dry dinosaur bones to life, featuring dinosaurs as the biggest villains of the film industry. America’s love affair with lost worlds, super-sized villains, and industry leading special effects, helped to make dinosaurs on the big screens biggest stars. Dinosaur movies have captivated our…