Scientists Agree Earth Is Underway on Major Mass Extinction

Earth Is Underway on Major Mass Extinction, Scientists Says

The Earth is underway on major mass extinction and disappearance of various species because of human activities, according to most scientists.

Over the past few decades, numerous variants of various species have already disappeared due to different factors.

At least half of the living creatures on the planet have been gone during the last 500 million years as the earth experienced five periods.

Major Mass Extinction

Recently, most of the scientists in the world agree that a “mass extinction” event is underway on Earth.

The experts believe that the influence of human activity in the world would make species disappear hundreds of time faster.

Around 90 percent of organisms that have strode, swam, soared or slithered have disappeared.

Major Mass Extinction

Here are the major mass extinctions happened on Earth:

Cretaceous Extinction

  • World’s non-avian dinosaurs, from T-Rex to the three-horned Triceratops disappeared due to the space rock impact.
  • 66 million years ago about 75 percent of those species have gone.

Triassic Extinction

  • Large land animals, including most archosaurs, dinosaurs, and large amphibians have been eliminated due to the suspected asteroid impact or massive lava eruption.
  • 200 million years ago about 70-80 percent of the species had lost.

Permian Extinction

  • Asteroid impacts, methane release and sea level fluctuations known as the “Great Dying” devastated ocean and land life alike and also nearly eliminates insects.
  • 252 million years ago around 95 percent of species were eliminated.

Devonian Extinction 

  • Ocean organisms were the most affected of the asteroid strikes, climate change, and fluctuation in sea level causing oxygen depletion in the ocean.
  • 375-360 million years ago up to 75 percent species were lost.

Ordovician Extinction

  • Marine organisms suffered from the intense ice age.
  • 445 million years ago about 60-70 percent of species disappeared.

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