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BOSTON (AP) — Colleges and universities are pushing back against the Trump administration’s decision to make international students leave the country if they plan on taking classes entirely online this fall. Harvard University and the Massachusetts Institute of Technology filed a lawsuit seeking to block the rule Wednesday, and other universities are promising to work with students to keep them in the country. The Trump administration says the directive will allow for proper social distancing on campuses. U.S. Immigration and Customs Enforcement notified colleges Monday that international students will be forced to leave the U.S. or transfer if their schools operate entirely online. 699

Being home more during the pandemic, and with less traffic on the roads from stay-at-home orders, many people have heard more bird calls and the sounds of nature in urban areas. Scientists now say at least one bird species has been able to adjust their bird song because of the lack of human noise to compete with.Researchers have been studying the white-crowned sparrows in and around San Francisco for more than two decades. They compare their songs in recent years with recordings made in the 1970s.They found as traffic levels increased over the decades, the lowest frequencies of the sparrows’ song rose. This allowed their song to be heard above the low hum of vehicles. The top frequencies remained the same, so the total frequency bandwidth of their communication was narrowed.Degrading their songs this way, and limiting their range, makes them less effective at deterring rivals, attracting mates, or hearing their own chicks, according to researchers. In noisy environments, birds have to sing louder, which research has shown can result in stress and can speed up a bird’s aging and disrupt their metabolisms.When stay-at-home orders and coronavirus pandemic safety measures were put in place in March, the lead researcher, Elizabeth Derryberry, remembers seeing an image of the Golden Gate Bridge in San Francisco completely empty of cars or humans. She wondered how the sparrows were responding.They compared audio recordings of the bird songs from spring 2015 and 2016, to those taken this spring. The recordings were made in a variety of urban and rural locations around the greater San Francisco area.“We found that birds sung at lower minimum frequencies, achieving greater bandwidth songs in newly open acoustic space. An increase in frequency bandwidth results in the transmission of more information and greater vocal performance,” the study states.The samples taken in 2020 revealed the white-crowned sparrows had changed their tune, so-to-speak, and were singing softer and using a wider range of frequencies. They also were able to communicate twice as far as previous recordings.“This doubling in communication distance could elevate fitness by reducing territorial conflicts and increasing mating potential,” researchers stated.Researchers also say this explains why more people report hearing birds during the pandemic. Since the songs are traveling farther distances, humans are able to hear more of them.They also say the changes in the birds’ songs were more pronounced in urban areas compared to the rural location samples. This would make sense, they say, because the traffic noise did not change as drastically in the rural locations during the pandemic.“Our findings indicate that songbirds like white-crowned sparrows have a striking capacity to exploit newly empty soundscapes following acute but ephemeral amelioration of noise pollution, suggesting that lasting remediation might engender even more promising outcomes, such as demographic recovery and higher species diversity in urban areas,” they concluded. 3055

Bill and Hillary Clinton on Tuesday kicked off their paid speaking tour in Toronto, re-emerging in the national spotlight as their political legacy undergoes a public re-examination two years after the former secretary of state lost the 2016 election.President Donald Trump hung over the 90-minute event, with the Clintons using questions on foreign policy, the 2018 midterms and climate change to slam the President before a receptive audience. The Clintons critiqued Trump's rhetoric on trade, his comments about military leaders and, notably, his handling of the murder of Saudi journalist Jamal Khashoggi in the country's consulate in Turkey."We have a president who is part of the cover-up as to what happened in that consulate or embassy when Mr. Khashoggi was murdered," Clinton told the audience. "And we have a president and those closest to him who have their own personal commercial interests."Clinton went on to suggest that Trump's hesitance with confronting Saudi Arabia over Khashoggi's murder was more about his personal connections to the Kingdom, not the country's business deals."What we don't know," she added, "is how much commercial interest both the President's family and business and his son-in-law's family and business have with the Kingdom."The interview between the Clintons and Frank McKenna, the former Canadian Ambassador to the United States, was friendly and avoided sensitive subjects. The event was also not sold out. Organizers cut the Scotiabank Arena in half and blocked off the upper level, but as the show got underway there were sections of seats unoccupied.The series, sponsored by Live Nation, is meant to bring the couple together for a question and answer with high profile figures in each of the 13 cities they visit on the months-long tour.But the kickoff comes at a tenuous time for the Clintons: Not only is their standing in the Democratic Party in question after neither was particularly prolific during the midterms, but the event comes amid a renewed focus on Bill Clinton's affair with Monica Lewinsky, a moment in history that has gained more attention recently because of a multi-part series on the affair on A&E and other retrospectives. The Lewinsky affair and other allegations against of sexual impropriety Bill Clinton are also being re-examined in the light of the #MeToo era.Some Democrats, too, have questioned why Clinton remains in the political spotlight after her loss, criticism that the former secretary of state has called "ridiculous.""I noticed that there were no articles telling Al Gore to go away or John Kerry to go away or John McCain or Mitt Romney to go away," Clinton said in October. "Mitt Romney is going to the Senate, that's where he's going."Hillary Clinton was not asked about these questions during the event. But McKenna did ask the 2016 candidate whether she was considering running for president in 2020."Actually, Frank," she said with a smile, "I am thinking about standing for Parliament here in Canada." 3011

BANNING, Calif. (AP) — Authorities say a malfunctioning diesel vehicle sparked the first big Southern California wildfire of the year, which has forced thousands of people from their homes east of Los Angeles. State fire officials say the vehicle's exhaust system spewed burning carbon Friday in Cherry Valley in Riverside County, although it hasn't been found. The blaze is raging for a fourth day and has burned one home. It's one of several burning around the state amid sweltering temperatures. Evacuations were ordered for a blaze in Colusa County in Northern California. Another fire in San Luis Obispo County is 60% contained. 641

Beautiful drone video recorded on the Treasure Coast shows surfers and sharks sharing the surf on a sunny Florida day. RELATED: More shark storiesVideo uploaded to YouTube by "HYDROPHILIK" on Feb. 26 shows footage of sharks very close to surfers near the Fort Pierce Inlet.At one point in the video, a surfer falls down and appears to have landed on top of one of the sharks -- or at least very close to it.Shark experts say just offshore right now it's a "shark super-highway" where thousands of sharks are on the move this time of year. Watch this great #hammerhead #shark troll the waters off #Palmbeach yesterday! Notice the smaller spinner/blacktips stay away since they can be a tasty meal ?? #Florida #shark #sharks #drone video thanks Our Children’s Earth Foundation photographer Ivy Yin ????#sharkmigration pic.twitter.com/NCgUebKoUX— James Wieland (@SurfnWeatherman) February 28, 2018 932