In a new study, researchers from Stanford University and the Universidad Autonoma de Mexico revealed that earthlings could begin to feel extinction as early as three generations from now.

The loss of biodiversity will cause global environmental impacts and threaten valuable ecosystem services and human well-being on humans.

Scientists have assembled statistical evidence that Earth is in its sixth global mass extinction and the species are disappearing at more than 100 times than previously assumed.

The findings revealed that human activity like overpopulation and development are major factors leading to extinction.

Todd Palmer, one of the authors of the report in the journal Science Advances, said that humans can't afford to continue losing species at the rate they are currently disappearing.

Scientists also wanted to find out how modern extinction rates have changed through time and how many years would it have taken for species that went extinct in modern times.

The scientists wrote, "These are important issues because the uncertainties about estimates of species loss have led skeptics to question the magnitude of anthropogenic extinctions, and because understanding the magnitude of the extinction crisis is relevant for conservation, maintenance of ecosystem services and public policy".

Scientists avoided the kinds of assumptions that led previous scientists to be characterized as alarmists as they wanted to blame human activity for those extinctions.

It's very important to avoid a full-blown sixth extinction with concerted efforts in order to save threatened species and ease pressures on other animal populations.