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World's large carnivores being pushed off the map

World's large carnivores being pushed off the map

Science
Six of the world's large carnivores have lost more than 90% of their historic range, according to a study.The Ethiopian wolf, red wolf, tiger, lion, African wild dog and cheetah have all been squeezed out as land is lost to human settlements and farming.Reintroduction of carnivores into areas where they once roamed is vital in conservation, say scientists.This relies on human willingness to share the landscape with the likes of the wolf.The research, published in Royal Society Open Science, was carried out by Christopher Wolf and William Ripple of Oregon State University.They mapped the current range of 25 large carnivores using International Union for Conservation of Nature (IUCN) Red List data. This was compared with historic maps from 500 years ago. The work shows that large carnivore r...
Do you live in the world's laziest country?

Do you live in the world's laziest country?

Health
US scientists have amassed "planetary-scale" data from people's smartphones to see how active we really are. The Stanford University analysis of 68 million days' worth of minute-by-minute data showed the average number of daily steps was 4,961.Hong Kong was top averaging 6,880 a day, while Indonesia was bottom of the rankings with just 3,513.But the findings also uncovered intriguing details that could help tackle obesity.Most smartphones have a built-in accelerometer that can record steps and the researchers used anonymous data from more than 700,000 people who used the Argus activity monitoring app.Scott Delp, a professor of bioengineering and one of the researchers, said: "The study is 1,000 times larger than any previous study on human movement."There have been wonderful health surveys...
Elon Musk to build world's largest battery

Elon Musk to build world's largest battery

Technology
Tesla, the electric car business owned by billionaire Elon Musk, is set to build the world's largest ever lithium-ion battery.Ever the entrepreneur, Mr Musk and Lyndon Rive, the head of Tesla's battery division, proposed building an energy storage facility in South Australia following total blackouts across the state following a storm in March 2016.South Australia has struggled to access renewable energy supplies and retain power for residents in recent years.Tesla will get the system installed and working 100 days from contract signature or it is free. That serious enough for you?— Elon Musk (@elonmusk) March 10, 2017As a maker of electric automobiles, Tesla has also invested heavily in energy storage and solar panel technology - and it believes its technology could develop far beyond veh