濮阳东方医院看阳痿非常靠谱(濮阳东方医院男科咨询医生热线) (今日更新中)

SEATTLE (AP) — U.S. scientists said Friday they will investigate why an unusual number of gray whales are washing up dead on West Coast beaches.About 70 whales have been found dead so far this year on the coasts of California, Oregon, Washington and Alaska, the most since 2000. About five more have been discovered on British Columbia beaches. That's a very small fraction of the total number of whales believed to have died, because most simply sink and others wash up in such remote areas they're not recorded.NOAA Fisheries on Friday declared the die-off an "unusual mortality event," providing additional resources to respond to the deaths and triggering the investigation."Many of the whales have been skinny and malnourished, and that suggests they may not have gotten enough to eat during their last feeding season in the Arctic," agency spokesman Michael Milstein told reporters during a conference call.The eastern North Pacific gray whales were removed from the endangered species list in 1994, after recovering from the whaling era.The population has grown significantly in the last decade and is now estimated at 27,000 — the highest since surveys began in 1967. That has raised questions about whether their population has reached the limit of what the environment can sustain. Another theory suggests that the loss of Arctic sea ice due to global warming is a culprit.The whales spend their summers feeding in the Arctic before migrating 10,000 miles (16,000 km) to winter off Mexico. Though they eat all along their route, they are typically thinning by the time they return north along the West Coast each spring.They eat many things, but especially amphipods, tiny shrimp-like creatures that live in sediment on the ocean floor in the Arctic. For many years, researchers noted that fewer calves tended to be born following years when the ice in the Chukchi Sea, north of the Bering Strait between Alaska and Russia, was late to melt. The whales had less time to feast because they couldn't access the feeding area, and thus had less blubber to sustain them on their next migration.Last year, though, the Artic was unusually warm. The whales weren't blocked from the feeding area, and yet are still struggling this year. That has scientists wondering if the loss of sea ice has led to a loss of algae that feed the amphipods. Surveys show the amphipod beds moving farther north, said Sue Moore, a biological oceanographer at the University of Washington."The sea ice has been changing very quickly over the last decade or so," she said. "The whales may have to shift to other prey, such as krill or other things they eat."In an average year, about 35 whales wash up in the U.S.In 2000, more than 100 did, prompting NOAA to declare an "unusual mortality event" then as well. The resulting investigation failed to identify a cause. The die-off followed strong changes in ocean conditions in the mid-1990s, suggesting that warmer water patterns affected the availability of prey, but scientists were often unable to perform necropsies, Moore said."It's sometimes very difficult to get to these whales in a timely fashion," she said. "You can't always get the kind of samples you would need for diagnostic reasons."Since then, researchers have built up an improved network of volunteers and have better educated the public to help report and respond to whale deaths, said Deborah Fauquier, veterinary medical officer at NOAA's Office of Protected Resources. This time around, scientists have been able to perform necropsies on 20 of the whales, she said.John Calambokidis, a research biologist with the Cascadia Research Collective, noted that as the whales search farther afield for food, they've entered areas where they're not normally seen so often, including San Francisco Bay and Puget Sound. That puts them at higher risk of being struck by ships or entangled in fishing gear.Four of the 10 gray whales found dead near San Francisco this year were struck by ships, and a number of shipping companies have slowed their vessels in the area to avoid collisions. 4086

SEATTLE (AP) — William H. Gates II, a lawyer, and philanthropist best known as the father of Microsoft co-founder Bill Gates, has died at 94.The family announced Tuesday that Gates died peacefully Monday at his beach home in Washington state from Alzheimer's disease. In a statement, the family credited the patriarch with a "deep commitment to social and economic equity," noting that he was responsible for the Bill & Melinda Gates Foundation's first efforts to improve global health. Bill Gates Jr. wrote on his blog that his dad's "wisdom, generosity, empathy, and humility had a huge influence on people around the world." 639

SAN LUIS OBISPO, Calif. (KGTV) - An animal rights group is suing an organization purporting to be an animal rescue for allegedly violating a new California law.ALDF claims that Bark Adoptions, registered to an address in Menifee, Calif. has been supplying dogs to pet stores in “an unlawful scheme to sell and launder puppy mill puppies .”They claim it violates AB 485, a California law that was enacted on January 1 of 2019, sometimes referred to as the “Puppy Mill Ban.”The law prohibits pet stores from selling animals from breeders, instead, only allowing stores to sell dogs from shelters or rescue groups.The law specifically states that a “rescue group” must have tax-exempt status as a 501(c)(3) organization by the IRS. Furthermore, it must be in a “cooperative agreement with at least one private or public shelter.”In February, 10News reported that Bark Adoptions had been supplying dogs to stores in San Diego County and Riverside County. Undercover video from the animal rights group, Companion Animal Protection Society, showed young, apparently purebred and designer puppies being sold for thousands of dollars.10News obtained interstate certificates of veterinary inspection that showed Bark Adoptions was getting the 8-10 week old puppies shipped from another purported rescue in Iowa, called Rescue Pets Iowa.The investigation by ALDF followed the same trail and alleged the defendants conveyed “those puppies to pet stores for profit.”“This is what we’re alleging in our lawsuit, that it amounts to nothing short of a puppy laundering operation that we’re gonna try to stop with a court order,” said Christopher Berry, a staff attorney with ALDF.10News reached out to Lara Abuzeid, an attorney for Bark Adoptions, but did not receive any comment on the lawsuit. 1788

School districts across the country are being tasked with opening their campuses safely. Social distancing is a big part of that, but limited spacing at schools and a lack of available teachers is making that difficult."We are also having our students wear masks, as well, to keep our students and our staff healthy. I worked with superintendents across the state to compare plans and what they're following. Most of us are trying to keep that three foot distancing facing forward when possible and six foot distancing when we can, as well," said Jonathon Cooper, the Superintendent of Mason City Schools in Ohio. Cooper said each level of his district's plan aligns with the levels of coronavirus cases in their community. For example, if COVID-19 levels rise to a certain level, the district will move to having students in class only a couple days a week."The way that it is structured, is it’s every other day and so it creates consistency for our families and it allows our teachers to have 50% of the class in person that they can concentrate on, get them set up for the next day while the other 50% of their class comes in. It allows them to spread out in their classroom," Cooper explained.Many public school districts say they're dealing with reduced budgets, so hiring new teachers to ensure smaller class sizes is not a possibility. Plus, a lot of educators say even if they could hire teachers right now, there are not enough qualified candidates."This COVID-19 health crisis has really exposed inequities in many of our public institutions and definitely in our education system and it shows the reason why we don’t have that pool of new up and coming educators," said Manuel Bonilla, the president of the Fresno Teachers Association in California."We see it in all the documents from federal to state to local, that physical distancing is one of the things that needs to take place and we just don’t have the manpower to do so with teacher shortage," Bonilla said. He adds that many of the roughly 4,000 teachers in his city don't even feel comfortable taking on face-to-face learning in the classroom this fall. "When you just take a look at the CDC guidelines, the state guidelines and the local guidelines as to what you need in order to return safely in a classroom, physical setting, we know that by the start of school date we just can't do that," Bonilla said.And if teachers get sick, it may be hard or unsafe to find replacements. Bonilla is concerned with the availability and willingness of substitute teachers during this time. "See and that’s one of the points in regards to substitute teachers and the physical reopening of schools. When you take a look at the qualifications of quarantine and the subs moving from place to place and it's by the nature of their position they might be in different areas or causing that unsafe atmosphere just because there will be different contact points," says Bonilla.Districts are also worried that any lack of protections for teachers could further impact a teacher shortage.Back in Ohio, Cooper said, "We're also losing funding really quickly from our state. We’ve lost .2 million in the last four months. So when you’re losing money, you’re doing these amazingly new strategies to keep everybody safe and things we’ve never done before so we’re writing the script as we go,"The superintendent adds that many education administrators nationwide are leaning on each other now more than ever to make the right decisions when it comes to reopening schools this fall. 3541

SAN MARCOS, Calif (KGTV) - A San Marcos family is warning pet owners of the consequences that can come when a dog runs away.They say their 11-year-old dog has gotten away twice in the past six months due to problems with their gate - both times he ended up with the San Diego Humane Society.After the most recent incident an animal officer told the family if it happens again they'd be facing a misdemeanor charge and serious fine.The Humane Society says they try to give owners warnings first but that they must put public safety first.Humane officers can issue a citation and then charges and fines are up to a judge. Fines can be hundreds of dollars.    674

来源：资阳报