MARTA COROMINAS 1r Batx B (1)

NEW HYPOTESIS ABOUT THE DISAPPEARNCE OF THE ENIGMATIC TIGER OF TASMANIA.

SUMMARY: 

A group of scientifics have found that one of the facts that caused the disappearence of the tiger of Tasmania was the phenomenon of "El Niño". Some scientific evidences show that thousands of years ago these marsupials were living in the australian continent since 1936 when the last tiger dead. 

Nowadays, photos of this marsupials usually apear on the social media making people think about the possibility of the existence of these curious animals. 

LINK: 

http://www.lavanguardia.com/natural/20170928/431611070359/hipotesis-desaparicion-tilacino-tigre-tasmania-lobo-marsupial-cambio-climatico.html

PUBLICATION DATE: 

28/9/2017

SCIENTIFIC FIELD: 

Taxonomy

GLOSSARY: 

Marsupial: Type of mamifer.

ANALYSIS COMMENT: 

This article explains how the theories about the dissapearence of the tiger of Tasmania have developed with tha pass of the years.

First pepople thaught that with the arrival of European humans in Australia was the reason why these animals dissapeared. This theory was delayed when people start thinking that the intensive hunting and the diseases by new species were the real causes.

Lots of scientists are investigating about this phenomenon but Laura white's afirmation made a lot of people change their point of view. She says that the dissapearence process of this marsupial was a fast process in which a poor genetic diversity had nothing to do.

Now this new hypotesis seems to be the best one because the proofs are more actual and they have a better quality than the other ones. In this new hypotesis enviromental factors have an important weight because it looks like this process gone faster 3000 years ago buecause of the increment of the droughts.

To conclude, it isn´t easy to know the real causes of the dissapearence but at the moment and thanking to the new technologies we can know it better.