Extinction by Max Calaquian

Ordovician-Silurian Extinction

mcalaquian — 2024-04-03 04:18:03 UTC

During this extinction, the life of the small aquatic organisms was ended. This happened around 440 million years ago. 60% of the animal species were extinct in this period.

The Devonian Extinction

mcalaquian — 2024-04-03 04:19:24 UTC

This marks the extinction of the tropical marine life forms. This extinction occurred about 20 million years ago. 70% of the marine species which included the coral reefs were extinct in the shallow regions of the sea.

The Permian - Triassic Extinction

mcalaquian — 2024-04-03 04:20:48 UTC

This is the largest mass extinction that is known that depleted a huge range of species, including the vertebrates. It was an abrupt extinction. 96% of the marine and the terrestrial animal species were extinct and hence this event is referred to as the Great Dying. It is known to be a result of a huge volcanic activity or the comet that struck the surface of the earth.

The Triassic - Jurassic Extinction

mcalaquian — 2024-04-03 04:22:01 UTC

This extinction took place about 18 million years ago during the end of the Triassic age. All the terrestrial and marine reptiles and the plant species which included the dinosaurs were all wiped out.

The Cretaceous-Tertiary Extinction

mcalaquian — 2024-04-03 04:23:08 UTC

This marked the extinction of the nonavian dinosaurs. They were all wiped out at the end of the Cretaceous period and during the beginning of the Tertiary period. Therefore, it is called the KT extinction. It marked the dawn of a new era and age. The extinction took place about 65 million years ago when a huge asteroid hit the surface of the earth. This, in turn, led to immense changes in the atmosphere, the sea levels and the temperatures that ended life on the surface of the earth.

Sixth Mass Extinction

mcalaquian — 2024-04-03 04:23:46 UTC

We are at present in the middle of the sixth mass extinction, and humans are the big cause of it. The humans have already killed most of the several animal species for their own recreational activities and benefits.

The invasive species were previously transported from one part of the world to the other part that eliminated the native species that resided in that part. Also, the immigration and the emigration of the humans and the animals have spread several diseases in several different parts of the world wherein they were not present before.

The toxic chemicals have harmed marine life to a greater extent. The natural available resources are also depleting to a wider extent because of the growing population. The heavy pollution has led to an increase in the temperatures and the water levels in the sea that would have several catastrophic effects on life on the earth in the coming future.