Scientists have predicted the Earth is a global extinction

Mammals cannot evolve fast enough to escape current extinction crisis

More than 300 different mammal species have been eradicated by human activities. So when they all went extinct, many years of evolutionary history disappeared with them.

According to their calculations, in the best-case scenario, nature would need 3 million to 5 million years to get back to the level of biodiversity we have on Earth today.

Five vital turbulences over the past 450 million years have been responsible for extinction of majority of Earth's plants and animal species because of environmental change. In those cases, evolution allowed new species to replace those that were lost.

As Matt Davis says: "It is much easier to save biodiversity now than to re-evolve it later".

Every species that went extinct because of us represents a tragedy.

"That is pretty scary". "We are starting to cut down the whole tree [of life], including the branch [humans] are sitting on right now".

The new research, published in the Proceedings of the National Academy of Sciences, did not simply add up the number of lost species, as this fails to capture how unique each species is in evolutionary terms. The Permian-Triassic extinction, for instance, took place about 250 million years ago at the end of the Permian period and wiped out 96% of all marine species and over three-quarters of land vertebrates. There are hundreds of species of shrew, so if half of them should become extinct, it wouldn't kill out the entire shrew population on Earth.

"Contact your representative in government", said Davis.

And we're exterminating species so fast that it will take our planet five million years to evolve back to our current level of biodiversity after the next 50 years, according to Aarhus University researchers. Since 1500, another 500m years has been lost. If mammals expand at their normal rate it will still take them 5-7 million years to establish biodiversity to its levels prior to evolution of modern humans and 3-5 million years just to reach present biodiversity levels as per analysis. On the other hand, there are only two species of elephants.

Sri Lanka reverses $300m China housing deal as PM visits India
When contacted, Presidential adviser Shiral Lakthilaka told The Hindu: "We cancelled it because we are awaiting more information". The Sri Lankan foreign ministry also issued an official statement rejecting the media reports as "baseless and false".

Huawei introduces new Mate 20 devices
Part of the reason the Huawei Mate 20 X is so enormous is that there's a 5,000mAh battery tucked inside it. On the plus side, the Mate 20 does include a 3.5mm headphone jack that isn't included on the Mate 20 Pro .

Walking Dead Hits New Low in Series Ratings
The second episode of season nine fell a further 19% from last week with an audience of 4.9 million. Stay tuned if the ratings sink lower, but also stay tuned to The Walking Dead , AMC hopes.

The losses are already affecting ecosystems, he said, particularly the vanishing of "megafauna".

He noted that the planet no longer boasts giant beavers, giant deer, or giant armadillos.

"We are now living in a world without giants", said Davis. "So the seeds of big fruit are not dispersed any more because we don't have mammoths or gomphotheres or giant ground sloths eating those fruits". Another example, he said, is the widespread loss of wolves.

People are destroying animals and plants change the environment so quickly, that evolution has not kept pace adapting organisms, and therefore they disappear.

Mammals are going extinct at an alarmingly accelerated rate. The team only looked at mammals, as they are well studied, but extinctions in other animals are just as high.

Though the researchers' findings are dire, the scientists said their work could be used to figure out which endangered species are evolutionarily unique, which might help conservationists decide where to focus their efforts to prevent the most devastating extinctions. The black rhino, the red panda and the indri - a large lemur - are among those highlighted.

The team of researchers behind the report from Aarhus University and the University of Gothenburg calculated that the extinctions are moving too rapidly for evolution to keep up. There are many species of shrew, so if one species should become extinct, the environmental impact is great but not catastrophic.

However, not all species have the same significance.

Related:

Comments

Latest news

G League to offer $125K contracts to elite prospects as NCAA alternative
But now there's another way for them to make money for a year rather than going to school if they so choose it. How will the G League's contracts work? Athletes will have only one season on a G League Select Contract.

‘Love & Hip Hop’ Star Tommie Lee Arrested TWICE Within 24 Hours!
Officials said the 34-year-old grabbed her daughter by her hair and "shoved her head first forcefully into a medal school locker". According to WSB-TV , Lee was released on $27,000 bond on Wednesday and later arrested that night on aggravated stalking charges.

NOAA predicting mild winter in New England
The chances are highest in southeastern Georgia and much of northern and central Florida. Weather experts predict a warmer than normal winter in Kansas.

127 suspected and confirmed cases of polio-like condition — CDC
In the most severe cases, patients suffer respiratory failure when the muscles involved with breathing become weak, the CDC says. The Ohio Department of Health says it can not release information about suspected cases, or where the disease was reported.

WH Downplays Reports Of Heated Exchange Between Kelly, Bolton
Trump has lately expressed fury about a large group of migrants who are traveling from Honduras toward the USA border. Bolton criticized Nielson, saying she needs to start doing her job, which angered Kelly, according to CNN's source.

New Banksy Video Suggests Shredded Painting Stunt Didn't Go Entirely To Plan
The auction and partial shredding are shown, as is the work being taken off the wall at Sotheby's and carried out of the room. Now, Banksy has uploaded a video suggesting the entire canvas was supposed to shred, and not just two thirds of it.

Morrison government transfers refugees to Australia from Nauru amid internal pressure
An IHMS spokeswoman told News Corp Dr Montana was stood down yesterday "for a breach of Regional Processing Centre rules". That legislation would prevent anyone transferred to New Zealand could not travel to Australia would need to occur first.

‘Iron Fist’ Fans Launch Petition To Bring The Show Back
Well, here we are now only a few days later, and already a fan petition to save the series from cancellation has surfaced online. Sure, the first season of " Iron Fist " was pretty much panned , but numerous toughest critics said Season 2 was a lot better.

Winamp is being updated and reimagined as an audio app for mobile
It has been reported that Winamp still has over hundred million monthly active users, most of which reside outside the US. Despite years of trying and several official Google solutions, Android still doesn't have a standout free podcasting app.

Marlins home-run structure 'Homer' to be moved outside
The Miami Herald reports that "Homer" will be moved outside the stadium, where it will still be active for home runs. The plan is for the spot to include a new multi-story spectator area for standing-room-only ticket holders.

Biden Doesn't Think There Is 'Basis' For Trump Impeachment Yet
He says that the Democrats should wait until special counsel Robert Mueller finishes his investigation. You don't put an arbitrary end to it.

Twitter Releases Full Tweet Archive From Russian, Iranian Trolls
Twitter said it is committed to " understanding how bad-faith actors use our services ", but also acknowledged that independent research will help its own team.

More Options Available This Flu Vaccination Season
De Villiers says that even those who are young and healthy still need the shot because if they don't, they can put others at risk. In addition to the effectiveness of the flu shot, the survey also found that many parents question the vaccine's safety, as well.

Twelve million face famine in Yemen if bombs don't stop, WFP warns
WAR has pushed Yemen to the brink of the worst starvation the world will have seen in decades, the United Nations has warned . WFP's Anderson told CNN that conflict around Hodeidah is now blocking the aid group's access to wheat stocks there.

Scholes: Messi would struggle at Man United
Amid these chaotic and uncertain times at Manchester United , supporters of the club could now be in for some delightful news for a change.

Other news