Polarized opinions exist to explain the view of what caused the extinction of dinosaurs. Over the years controversies on the same have not arrived on any affirmations because of puzzling information that points out to contrasting directions. Fortunately, controversies on the same have not halted the study on the extinction of dinosaurs.
The views are wide and varied through the common consensus is that dinosaurs were once successful animals for about 160 million years ago yet they completely died out, actually marking the greatest debate in evolution.
It is not easy to comprehend the same, or even to imagine since dinosaurs like is exhibited on the media, are probably gigantic, how could they just disappear? Of the many questions related to dinosaurs, their disappearance remains a mystery. The mystery is actually heightened when you apparently realize that dinosaurs we were widely distributed and firmly adapted to their environment. The demise of dinosaurs is generally hard to comprehend. I guess that is why there are so many theories that have been spawned up to perhaps help delve into the mystery. Most of the leveled mysterious on the extinction of dinosaurs have generated multiple theories some plausible and some outrightly entertaining.
For many years paleontologists held that dinosaur’s extinction was caused by geological and climate changes, these theories speculate that dinosaurs died from overheat and other postulates that they died from the cold.
The other hypothesis is that dinosaurs could have starved to death because of nutritional problems. It is speculated that the plants evolved to be poisonous thus killing the dinosaurs. An existing variant on the poisonous theory is that poisonous insects evolved to sting the dinosaurs to death. While others purport that the water becomes poisonous. Another imaginative twist is that moths and butterflies evolved to strip off the leaves thus demising the herbivore dinosaurs.
Others theorized that the herbivores evolved to be carnivores yet others postulate that carnivores annihilated the herbivorous dinosaurs. Geophysical and astronomical changes have also been leveled up. For instance, it is purported that a change in the earth’s gravity or a change in the earth’s magnetic field caused a sudden radiation. Another ingenious hypothesis claimed that volcanism in large quantities’ and radioactive elements spewed up to kill the dinosaurs of radiation. Various theories suggest that earth’s atmospheric pressure changed to kill the dinosaurs such as the decreases in oxygen and carbon dioxide due to planktons and changes in plants ecology.
There is a list of countless theories, but the theories that gained acceptance are the meteor and volcanic theory. The meteor theory advances that a large meteor stroke the earth, injecting so much debris and dust blocking sunlight that consequentially altered the earth’s climate to cause an equivalent of the nuclear winter. In retrospect, as a domino effect plants, and the dinosaurs that ate plants could all have died and so the carnivorous animals that ate the herbivore dinosaurs. It is believed that this happened relatively fast to thwart evolution mechanism of adaption. Another theory proposed by a team of scientists in Sandia National Laboratories purport that an asteroid impact could have caused massive volcanic eruptions that may have killed many plants and animals.
Unfortunately, paleontology doesn’t appear to have conclusive research on the cause of dinosaur extinction. For instance, while the theories explain why dinosaurs died they don’t attempt much to explain why some inhabitants like crocodiles, birds, and marine species survived through such harsh conditions. One thing is clear though; polarized opinions on the extinction of dinosaurs are set to continue since research in this field is progressive. We may certainly never know what happened to dinosaurs since ingenious twists in theories explaining the demise of dinosaurs continues to be proposed and argued.