The researchers from the universities Stanford, Princeton and Berkeley they claimed that vertebrates have disappeared faster 114 times than normally. According to research published in the journal “Science Advances”, more than 400 vertebrate species have become extinct since 1900. Such a dislocation, not 100 years, it needs to be seen in a 10-thousand-year period.
Accelerated modern human–induced species losses: Entering the sixth mass extinction
by Gerardo Ceballos, Paul R. Ehrlich, Anthony D. Barnosky, Andrés García, Robert M. Pringle, Todd M. Palmer
Science Advances 19 Jun 2015
Abstract
The oft-repeated claim that Earth’s biota is entering a sixth “mass extinction” depends on clearly demonstrating that current extinction rates are far above the “background” rates prevailing in the five previous mass extinctions. Earlier estimates of extinction rates have been criticized for using assumptions that might overestimate the severity of the extinction crisis. We assess, using extremely conservative assumptions, whether human activities are causing a mass extinction. First, we use a recent estimate of a background rate of 2 mammal extinctions per 10,000 species per 100 years (that is, 2 E/MSY), which is twice as high as widely used previous estimates. We then compare this rate with the current rate of mammal and vertebrate extinctions. The latter is conservatively low because listing a species as extinct requires meeting stringent criteria. Even under our assumptions, which would tend to minimize evidence of an incipient mass extinction, the average rate of vertebrate species loss over the last century is up to 114 times higher than the background rate. Under the 2 E/MSY background rate, the number of species that have gone extinct in the last century would have taken, depending on the vertebrate taxon, between 800 and 10,000 years to disappear. These estimates reveal an exceptionally rapid loss of biodiversity over the last few centuries, indicating that a sixth mass extinction is already under way. Averting a dramatic decay of biodiversity and the subsequent loss of ecosystem services is still possible through intensified conservation efforts, but that window of opportunity is rapidly closing.
Please read full article from:
http://advances.sciencemag.org/content/1/5/e1400253.full
25% of all mammals are at risk. And in next fifty years, these species may become extinct.
Some of the species on this planet which will not be 50 years later.
Axolotl – Mexico salamander (Ambystoma mexicanum)
Slow Loris – A primitive primate living in Sri Lanka (Loris tardigradus)
Quokka- A small marsupial living in the southwest Australia. If you search by typing “Quokka selfie” in your web search engine, you can see how friendly they are
Kakapo-At the planet Earth, Kakapo is the only parrot species that can not fly, lives in New Zealand. There are only 124 Kakapo at planet anymore.
Source and to see other endangered species:
http://onedio.com/haber/neslinin-tukendigini-gorebileceginiz-25-nadir-hayvan-321041
Mankind is a wild species. Wars which are created by human and human’s massacres to nature are destroying other creatures on the planet. When looking at the figures, while the human population is increasing steadily, the animal and plant populations constantly tend to decrease.
Very few people do have the ability to empathize with other living creatures. And this minority is made up from children mostly. Unfortunately, the children do not have the power to rescue other living species on the planet. I wish they had.
For example, any human does not empathize to another species, as in the following example.
While Israel’s attacks kill animals… A dog is doing ‘motherhood’ to a lion cub
Last year, 86 animals in the Bisan zoo in Gaza have died as result of Israel’s attacks. Currently, a dog began motherhood to a baby lion that rejected to feed by mother lioness.
quotes from: http://haber.sol.org.tr/toplum/israil-saldirilari-hayvanlari-oldururken-kopek-yavru-aslana-annelik-yapiyor-120151
Also if you want to help last 124 Kakapo, you can see the details how you can help, in this link
http://kakaporecovery.org.nz/
unnecessary news from earth 