According to Science Views, no one knows for sure what caused the end of the Jurassic period, but they do know that several species started to die out, which gave rise to the Cretaceous period. Scientists do not believe that the transition from the Jurassic period to the Cretaceous period was as violent as the transition that took place at the start of the Jurassic period.
Science Views says that the Jurassic period started after a large extinction at the end of the Triassic period. Scientists believe that the start of the Jurassic period was caused by the splitting of Pangaea, which was what the continents were called before they split up into different landmasses. The splitting of Pangaea caused massive earthquakes and volcanic eruptions, which gave way to a large extinction. No such global event took place during the transition between the Jurassic period and the Triassic period.
The end of the Jurassic period is marked by what scientists call “The Great Extinction.” Many theories exist as to how this extinction took place, but some evidence suggests that it was due to plant decay. The creatures that survived during this transition included bugs that fed on dead organisms and mammals that fed on insects.Learn More
There are multiple theories as to why dinosaurs died out, such as asteroid impact, volcanic activity, and climate change. There are many theories because none has been proven to be 100 percent certain as the reason for the dinosaurs’ demise.Full Answer >
The velociraptor became extinct at the end of the Cretaceous Period due to an asteroid strike at the Yucatan Peninsula that occurred roughly 65 million years ago. This extinction event, known as the K-T boundary, also killed all other known species of non-avian dinosaurs.Full Answer >
No one knows for sure what brings on labor, so there is no way for a pregnant woman to break her water on purpose. In fact, What to Expect When You’re Expecting reports that fewer than 15 percent of pregnant women actually experience their water breaking before labor begins. There are, however, several theories as to how a woman can induce labor or speed up labor naturally.Full Answer >
No one knows for sure who invented horse riding because it happened before written history. The earliest archaeological evidence of horses being used for transport dates from about 2000 B.C.Full Answer >