For their research, the scientists spied on the polarbears by equipping nine female white giants with tracking collars that had video cameras and the bear equivalent of a Fitbit during three recent springs. However, the scientists found that the polar bears burned more energy than they were able to take in from their prey.
"Unfortunately, with the rapid environmental changes occurring in Arctic sea ice, the specialisation that once allowed polar bears to live in this challenging habitat has painted the animals into a physiological corner and led to devastating consequences".
Researchers also speculated that polar bears could lower their metabolic rate to save energy if they were not successful catching seals, Pagano said.
Using the Global Positioning System and video collars and the metabolic information, the researchers determined that the more a bear had to search for food the more energy it used. But since the seals are hard to come by in ice-free conditions, which are lasting longer every year, the polar bears are struggling.
"Two-thirds of the world's polar bears could die out by 2050", cautions WWF, demanding an immediate decline in greenhouse gas emissions so the bears can stand a chance of survival.
In December a year ago, a video of a dying polar bear rummaging in trash and eating styrofoam, assumed to be starving, went viral on social media.
In an average, the metabolic rates of the monitored polar bears were over 50 percent higher than previously predicted by other studies. These animals lost weight during the period that they were observed. Over the course of the study, five of the nine bears lost body mass, meaning they weren't taking in enough food to meet those energy demands.
While those Arctic ocean bears need ice in order to hunt for food during the spring, global warming is dwindling the blanket of ice across the locale.
"We've been documenting declines in polar bear survival rates, body condition, and population numbers over the past decade", the study's first author Anthony Pagano, a Ph.D. candidate at the University of California, Santa Cruz, said in a statement.
Khloe Kardashian speaks out about loss of her dog Video
Khloe previously said she was "devastated" by the passing of her canine friend, who was by her side through thick and thin. She feels like her home will never feel the same without her in it. "Where on earth did your baby go?" another added.
"The bears are moving with the ice and moving into these deeper water areas where it's thought they are having much less opportunity to catch seals". A few of the bears travelled more than 155 miles (250 kilometers) in about 10 days off the northern coast of Alaska in the Beaufort Sea, Pagano said.
All over the Arctic, scientists have seen evidence of weakened polar bears, Pagano said.
While scientists were quick to caution that the causes of the animal's condition remain unknown-disease, injury or any number of other factors could potentially have spelled its demise-experts are anxious that starving polar bears may soon become a more common sight as the sea ice they rely on for hunting grounds continues to melt away.
"Just to break even they have to capture at least one seal every five to 10 days - and that's just to break even", said study co-author George Durner, a USGS research zoologist.
The huge glacial ice sheets in Greenland and Antarctica are reacting more slowly to the warming atmosphere and oceans but scientists are watching them closely as they will heavily influence sea level rise if there's significant melting.
A latest study led by a group of researchers from US Geological Survey has found that some polar bears in parts of the Arctic are losing weights substantially while this is the time when they should gain more.
Most of the time the bears tracked in the study did use the "sit and wait" technique.
Previous studies estimate the mortality of male polar bears would increase from 6 per cent to 48 per cent if fasting periods increased from 120 days to 180 days.
Russian Federation has been conducting military operations in support of Syrian President Bashar al-Assad since September 2015. It is not known who shot down the plane, but jihadist group al-Qaeda-linked Hayat Tahrir al-Sham has a presence in the area.
The counterpoint to that is that Drummond has been more impactful to his team that is significantly less talented than Boston. Oddly enough, he's shooting just 59.1 percent from the free throw line, which is worse than Drummond's 62.5 percent mark.
It is Russian Ambassador to Washington Anatoly Antonov told about Naryshkin's visit to the United States on January, 30. Asked if Russian Federation would try to influence the mid-term elections, he said: "Of course".
Many folks who know their groundhogs , and their Groundhog Days, claim this is where the tradition started about 300 years ago. If the sun was bright on this day, the clergyman would hand out more candles, as they thought the winter would be longer.
The actress made good on that promise, over the course of two interviews in her NY apartment with Times columnist Maureen Dowd . I thought he was being super idiosyncratic, like this was your kooky, eccentric uncle", she recalled.
During the tests, the SM-3 Block IIA missile launched from the test site did not strike another missile fired from the aircraft. That caused the missile to self-destruct according to a report in Defense News.
A stronger strand has been active this year that wasn't predicted. "Against the H3N2, it offers a much lower percent". Forty-nine states have reported widespread activity for three consecutive weeks. "We're still counting it as a case".
The shooting was reported at 8:53 a.m. local time and occurred in an elective class with mixed grades, officials said. He said investigators would present their case Friday to the district attorney's office for filing consideration.
The Predators signed centre Nick Bonino in free agency and landed centre Kyle Turris in November from Ottawa in a three-way trade. During a press conference with the team on Wednesday, Fisher revealed that he has his wife's blessing to return to the game.
For comparison, EA was able to sell 13 million copies of " Star Wars Battlefront " during its launch quarter in 2015. When pressed for a time-frame for that, he indicated it would take place: "In the next few months".
Trump Asked Rosenstein Whether He Was On His 'Team'
The White House later said "no changes" would be made at the Department of Justice and that Rosenstein would continue his job . Trump, when asked Friday if he was thinking about firing Rosenstein, cryptically told reporters: "You figure that one out".
Three Indian troops killed in IOK avalanche
The three deceased army men were identified as Havaldar Kamlesh Kumar, Naik Balbeer and Sepoy Rajinder. Two more later succumbed while third soldier Seopy Bipin was stable, he added.
Top secret Australian files found in old filing cabinets
The cabinets and their contents were bought "for small change" in a sale that could have been made to anyone, the network says. The documents also revealed that between 2008 and 2013, the Australian Federal Police lost almost 400 national security files.
Asus Zenfone 5 Series will be on 27 Feb at MWC 2018
Meanwhile, Asus is also reportedly gearing up to launch ZenFone 5 series smartphones, the successors of ZenFone 4 . Last week, a suspicious Asus smartphone with model number ASUS_X00QD a certification from the Wi-Fi Alliance.
OPEC January oil output rises despite Venezuelan decline
OPEC is reducing output by about 1.2 million bpd as part of a deal with Russian Federation and other non-OPEC producers. As a result, the slowdown in US exports could create an additional factor sup-porting fuel prices in the short term.
AHA: Breast cancer therapies, heart disease linked
Just as Tonda Gonce won her fight against breast cancer, she quickly found out there was a whole new battle in front of her. That's the key message in the American Heart Association's first scientific statement to address the topic.
National Wear Red Day: Why do we wear red?
Every Macy's customer will get a second pin for free to give to a friend or family member when they buy one this year. But 80 percent of cardiovascular diseases are preventable through healthy habits like improving diet and exercising.
Boeing set to lead Wall St higher after two-day slump
Express Scripts, McKesson, Humana, Cigna, UnitedHealth , CVS Health and Centene were down between 5.3 percent and 7.2 percent. Declining issues outnumbered advancing ones on the NYSE by a 3.39-to-1 ratio; on Nasdaq, a 1.75-to-1 ratio favoured decliners.
Play as Ryu and Sakura in Monster Hunter
After its release last January 26, the new installment to the " Monster Hunter " series received high score ratings from critics. Completing this quest (and taking the " SFV Tickets" you receive to the Smithy) will unlock a special Ryu armor set.