The Sixth Extinction

Essay specific features

 

Issue:

Science

 

Written by:

Ron M

 

Date added:

September 25, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 357

 

Was viewed:

9586 times

 

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Essay content:

Evidence suggests that a bolide impact similar to the end-Cretaceous event may have been the cause of 54% of families lost in the third major extinction. Shortly after dinosaurs and mammals had first evolved at the end of the Triassic Period, the fourth extinction caused 23% of lost families. The most famous extinction is the fifth that took away 17% of families...
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The most famous extinction is the fifth that took away 17% of families. It wiped out the remaining terrestrial dinosaurs and marine ammonites. Consensus has emerged in the past decade that this event was caused by possible collisions between Earth and an extraterrestrial bolide. Some geologists point to the great volcanic event as part of the chain of physical events that disrupted ecosystems...
displayed 300 characters

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