Why+Did+the+Dinosaurs+Die+Out?

media type="youtube" key="XGXSBFI5r8Q&rel=1" height="355" width="425" =Why did dinosaurs die out?=

There are tons of theories to why the dinosaurs died out. Throughout the Mesozoic Era, individual dinosaur species were becoming extinct for several reasons. The unusually large extinction at the end of the Cretaceous the last of dinosaurs died out including the following: the flying reptiles, and the large swimming reptiles, as well as many other marine animals. There is now evidence that a meteorite was at least the part of the cause for this extinction. Impact craters are visible on most planets in the solar system. A good example of this was seen in 1994, when Jupiter was hit by a number of comet pieces. Some of these impact blasts were larger than the Earth's diameter. Other facts such as large releases of volcanic gases, climatic cooling, sea-level change, low reproduction rates, poisonous gases from a comet, or changes in the Earth's orbit may have caused this extinction to take place. In the space their was a collision of 2 asteroids. The remains from the asteroids hit many planets including earth. The one asteroid that hit the earth was 6.2 miles wide. It landed in the yucatan penninssula of Mexico.