濮阳东方医院男科治疗早泄口碑很高(濮阳东方治病专业) (今日更新中)

If you're interested in fish who are scary-looking, poisonous and chock-full of elaborate defense mechanisms, look no further than the stonefish, a genus of fish that populate coastal waters of the Indo-Pacific region.As if their deadly venom and spiny exteriors weren't enough, scientists at the University of Kansas have found that stonefish also have a hidden switchblade on their face that they can flick out whenever they feel like they're in danger.Scientists call the bony, blade-like protrusion a "lachrymal saber," because it is located on a bone under the fish's eyes. Also, "lachrymal saber" is just a really metal-sounding name.William Leo Smith, associate curator and associate professor of ecology & evolutionary biology at KU, first started to understand how the lachrymal saber worked 15 years ago, when he was dissecting a stonefish he kept as a pet.This is a game-changerHe tells CNN the mechanism isn't just a cool new discovery (although it's that, too). It also changes the scientific understandings and classifications of this particular type of fish."It opens up these ideas of ecological questions. Muscular systems, bone systems, nervous systems all came together to form this. What led to its evolution or use?In other words, he says, "Why do we see this accumulation of so many horrible things on one fish?"The lachrymal saber is housed inside the fish's head, and they use their cheek muscles to deploy it. Though some stonefish are venomous, the saber is not.It could be a sex thing, tooSmith says he and his fellow researchers have reason to believe the saber isn't just for warding off predators: It could be a sex thing, too."There is evidence pushing towards that," he says. "They may use this in battles with other members of their species, like ram horns. It may also be involved in courtship behaviors."Oh, and the sabers glow."It's fluorescent green," Smith says. Since stonefish rely on camouflage for both protection and hunting prey, Smith doesn't think the fluorescence has a defensive purpose like, say, warning off predators.There are 134 described species of stonefish, and by Smith's observation, all of them have some form of lachrymal saber.  2202

IMPERIAL BEACH, Calif. — A suspected drunk driver nearly hit several beach-goers Sunday before his SUV ended up in the ocean.The driver, identified as 50-year-old Jorge Mosti, was driving in the 1600 block of Seacoast Dr. just after 6:30 p.m. local time when witnesses say his SUV left the roadway and went onto the beach, according to San Diego Sheriff's Department.As he continued onto the beach, SDSO said Mosti nearly hit several people as he drove about a mile down the beach. His vehicle came eventually came to a stop when it partially submerged in the ocean.Mosti reportedly then jumped out of the vehicle and started walking toward Tijuana, Mexico. He made it about half a mile before deputies caught up to him. Deputies said Mosti was holding an open beer can as they took him into custody.Imperial Beach Lifeguards also responded to help pull the SUV from the water.Witnesses at the beach identified Mosti in a curbside lineup, SDSO said. He was arrested on charges of reckless driving and driving under the influence of alcohol. 1078

House Democrats overwhelmingly picked Nancy Pelosi to be their nominee for House speaker on Wednesday at a closed-door meeting, bringing the long-time Democratic leader one step closer to reclaiming the gavel when Democrats take control of the House of Representatives in the new year.Pelosi was nominated as speaker by House Democrats by a 203-32 vote, according to attendees in the room. Three ballots were blank. One was absent.A small, but vocal, faction of Democrats have been attempting to derail Pelosi's run for speaker, but she has succeeded in winning over a number of critics in recent days and was expected to easily win the nomination since it required only a majority of House Democrats. The make-or-break moment for Pelosi isn't expected to come until January, when the full House holds a final floor vote to elect the speaker.House Democrats are also holding elections on Wednesday for positions lower in the leadership hierarchy.The first election to be decided was for the position of Democratic caucus chair. Rep. Hakeem Jeffries of New York was elected to the post, making him the No. 5-ranked Democrat next Congress. The vote was close, 123-113. He defeated Rep. Barbara Lee, who would have been the first African-American woman in Democratic leadership.At 48, Jeffries is relatively young compared to the rest of the caucus and a rising star in the Democratic Party. Winning the position of caucus chair will elevate him further in the party's hierarchy and give him an opportunity to wield more power and influence. With Rep. Jim Clyburn's expected ascent to the majority whip position, Jeffries' win means that two of the top five leadership positions in the Democratic caucus will be held by African-American members.Lee, who is 72, said on Wednesday that she felt there were "institutional barriers" in her way."You feel some disappointment only with the institutional barriers that I recognized that were out there during this campaign. I'm really disappointed in that, knowing this was an uphill battle," she said.Asked if she felt ageism and sexism were at place, Lee said yes. "You heard and saw what took place, so absolutely, I think that is the case," she said."We still have many glass ceilings to break," she added.Speaking to reporters after winning his election, Jeffries said he wanted to thank Lee "for her tremendous service to this nation" and characterized the race very differently: "From the very beginning through the very end, this was a friendly contest of ideas."The elections are currently ongoing at the Capitol and will continue throughout the day.Inside the room where Democrats are voting, Rep. Joe Crowley, the outgoing caucus chair who lost his primary to incoming freshman lawmaker Alexandria Ocasio-Cortez in an upset, sang an Irish ballad to the House Democratic Caucus, two members present told CNN. The caucus gave him a standing ovation. 2906

If American religion were traded at a stock exchange, your broker might be telling you to sell. The trend lines don't look great and haven't for quite some time.Social scientists and religious leaders have lots of theories about the long, slow slide, blaming it on everything from the internet to the politicization of conservative Christianity.A new Pew Research Center study offers something different: a survey of 4,729 Americans telling us precisely why they do (or don't) attend religious services.Some of their answers are unsurprising. Americans who don't believe in religion don't often attend church. Because duh.But the survey may confound other stereotypes about other Americans who rarely, if ever, attend church. As it turns out, they're all not atheists, or even members of the "spiritual but not religious" crowd. Many say religion is important in their lives, and lean conservative, politically."The people who attend religious services less often are not a monolithic group," said Becka Alper, a research associate at Pew.First, here are the top 10 reasons given by Americans who attend religious services at least once a month, according to Pew. Survey respondents were allowed to give more than one reason. The percentage refers to people who said this was a "very important" reason for their decision: 1329

Hurricane Lane's outer bands have been pummeling Hawaii's Big Island with rain Thursday, triggering landslides and threatening serious flooding as the Category 4 cyclone moves perilously close to the Aloha State.The center of the storm — which could become the first major cyclone to make landfall in the state in 26 years — is expected to move very close to the main islands or cross land Thursday through Friday, forecasters said.It could be so devastating that authorities are urging residents to set aside two weeks' worth of food and water."Be prepared to shelter in place with 14 days of food supplies and water and any other necessities," Hawaii Gov. David Ige said at a news conference Wednesday.Track the stormThe storm's center, with maximum sustained winds near 130 mph, was in the Pacific about 210 miles south-southwest of the Big Island town of Kailua-Kona around 5 a.m. HT Thursday (11 a.m. ET).Landslides are a concern, with 10-30 inches of rain forecast through the weekend -- and slides already were happening on the Big Island as the storm's outer bands hit Thursday morning.On the Big Island's northern tip, landslides were blocking parts of Route 19, the county civil defense agency said.About 7 to 12 inches of rain already had fallen on parts of the Big Island by early Thursday, the National Weather Service office in Honolulu said.Buses around Honolulu have been picking up residents in need and taking them to shelters. All public schools canceled classes until further notice, and many state employees have been asked to stay home.Tropical storm force winds (39-73 mph) stretch out to 140 miles, so even if the hurricane doesn't make landfall, it could have widespread impact. Lane threatens to bring dangerous winds, landslides, rough surf and major flooding.All of the islands are under weather alerts.A hurricane warning is in effect for the Big Island as well as Maui County and Oahu -- meaning hurricane conditions are expected there. Kauai and Niihau are under a hurricane watch, meaning hurricane conditions are possible and that winds of at least 39 mph are anticipated in the comings days. 2133

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