Monday, 28 July 2014

What Really Happened to the Dinosaurs?

Welcome back my fellow learners, there are many speculations on what exactly happened to the dinosaurs, today we are going to look more in-depth into this mystery.

There have been many theories on what wiped out the Goliath of old, from volcanoes to earthquakes or even asteroids. However, the most favoured was a mammoth comet or asteroid that was approximately 6 to 12 miles wide hit the region which is now a part of eastern Mexico, which at the time was still submerged under water.

The impact of this is thought to have cloaked the earth in darkness for several months, this was mostly because of the vast amounts of dust which was flung into the atmosphere. A global fire wiped out nearly half of every living thing. Water would have been turned poisonous in many places, and the earth went into deep freeze while the dust was circulating the air.

However, some plants and animals were hardy enough to make it, such as insects, fish, frogs, crocodiles, birds, turtles, and even mammoths.

This could have been only a series of changes which helped wipe out the dinosaurs. Before the object hit the planet, massive volcanic eruptions made the earth's climate change. Around the same time, the sea levels dropped drastically, creating new land bridges, changing the ocean currents, thus affecting the climate. These changes more than likely reduced the dinosaurs ability to adapt, and the impact from the object was the final death toll.

The ones which survived these changes dominated the landscape. Mammals grew bigger in size, and migrated to new areas, taking over areas which had been previously the habitat of dinosaurs.

Changes in the ocean currents and sea levels also brought new climate changes. Massive ice sheets began covering large portions of the earth on a regular basis. These swings in climate also had a major effect on the habitat of animals.

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