The period when dinosaurs existed is believed to have been about sixty six million years ago. For humanity, this may seem to be a long period but not for an evolution process. This period is commonly known as the Cretaceous Period. This is the period when the planet Earth lost half of it's plant species and about 75 percent of all living organisms due to a global catastrophe.
At the end of the Mesozoic era, a huge asteroid crashed into the earth. The diameter ranged from eleven to eighty kilometers. It is argued that, when one edge of the asteroid had already hit the surface of the earth, the other edge was high up just the same height which an aeroplane flies about. After hitting the ground, it left a huge Crater which covered half of the Gulf of Mexico. To prove this, the Crater itself is a hundred and fifty kilometers in diameter and it's depth is measured at twenty kilometers.
Due to this collision, the earth changed instantly. Great tsunamis with a height of a hundred meters and some are estimated to have surpassed three hundred meters a height which is equivalent to the Eiffel tower in France. The waters of the oceans and seas were displaced causing waves that lasted for approximately ten hours. Forests within thousands of miles were destroyed in a second. The effect caused a 12point earthquake from Mexico upto the Latin America and particularly in Argentina.This fire was caused by tiny particles of rocks that were thrown high into the atmosphere and landed like drops of hot glasses.
The collision of this asteroid was felt even after million and million of years and scientists are still on the run to ascertain how things really were at that time. Dinosaurs and big mammals weighing upto twenty five kilograms were unable to survive but other small living organisms luckily managed to come out of the disaster alive. After this, the planet slowly but gradually recovered from the catastrophe and this led to the emergence of humanity upon the surface of the earth estimated being around three million years afterwards.
Scientists and many explorers argue that the collision of this asteroid or comet triggered the evolution of humankind. This process started way back to a time that is estimated to being sixty six million years ago. Do you think humans could have survived if they were present at that time or can they survive if a similar collision happens?
Content created and supplied by: Dannyboy1960 (via Opera News )
Opera News is a free to use platform and the views and opinions expressed herein are solely those of the author and do not represent, reflect or express the views of Opera News. Any/all written content and images displayed are provided by the blogger/author, appear herein as submitted by the blogger/author and are unedited by Opera News. Opera News does not consent to nor does it condone the posting of any content that violates the rights (including the copyrights) of any third party, nor content that may malign, inter alia, any religion, ethnic group, organization, gender, company, or individual. Opera News furthermore does not condone the use of our platform for the purposes encouraging/endorsing hate speech, violation of human rights and/or utterances of a defamatory nature. If the content contained herein violates any of your rights, including those of copyright, and/or violates any the above mentioned factors, you are requested to immediately notify us using via the following email address operanews-external(at)opera.com and/or report the article using the available reporting functionality built into our Platform See More