Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: In April that year, a 62-year-old man was bitten and pulled into the water by a sea lion at Mission Bay. The man had been posing for a picture with a trophy fish when the sea lion leaped out of the water and, while attempting to snatch the large fish, bit the man, pulling him into the water. ||||| Image copyright Getty Images Image caption Serious sea lion attacks in the bay are rare 
  
 A man swimming in San Francisco Bay has suffered a serious arm injury after being bitten by a sea lion, officials have said. 
  
 The incident occurred in the Aquatic Park area on Thursday afternoon. 
  
 People on a passing sailboat witnessed the attack and rescued the 56-year-old man, who was treated for a "serious extremity injury". 
  
 Such attacks are rare, although swimmers have reported incidents in the bay in the past. 
  
 "He was swimming and said a sea lion came up to him and he splashed water on it and it didn't work," Matthew Reiter of the San Francisco Police Department's Marine Unit told Fox News. 
  
 "He yelled at it and then the sea lion came up and bit him on the arm". 
  
 After taking the man on board, the people on the sailboat called the coast guard and the man was taken to hospital for treatment. 
  
 "I mean, the boat saved his life," Mr Reiter, who applied the tourniquet, said. 
  
 "If the boat hadn't been there, who knows what would have happened." 
  
 Dr Claire Simeon, a vet with the Marine Mammal Center, told CBS SF Bay Area that her research had shown San Francisco swimmers reporting 10 incidents in the area over three years. 
  
 There were no patterns and swimmers had not appeared to provoke the animals, she said, adding that people should still feel they could go swimming, as long as they maintained a safe distance. 
  
 In May, a sea lion pulled a young girl into the water at Steveston Fisherman's Wharf in Richmond, western Canada. ||||| - A swimmer was severely injured after being bit in the arm by a sea lion in the Bay on Thursday afternoon. 
  
 The 56-year-old man was swimming beyond the cove at Aquatic Park and was bitten around 1:45 p.m. 
  
 "He was swimming and said a sea lion came up to him and he splashed water on it and it didn't work. He yelled at it and then the sea lion came up and bit him on the arm and he used his arm to push him away and then it went away and he never saw it again after that," said Matthew Reiter with San Francisco Police Department's Marine Unit. 
  
 A sailboat happened to be nearby and saw the swimmer in distress, so he pulled the man onto his boat and immediately called police. 
  
 Police told the captain of that boat to bring him to the Hyde Street pier. 
  
 John Baxter with the San Francisco Fire Department tells KTVU several tourniquets were applied to the swimmer in an attempt to stop the bleeding. The tourniquet was applied by SFPD at Pier 45. The swift actions by emergency crews contributed to the swimmer's life being saved, according to San Francisco Fire. 
  
 The swimmer was then transported to Zuckerberg San Francisco General Hospital. 
  
 BAY RESCUE @SFPD MARINE07 Pulled 1 subject out of the water with reported sea lion bite extremity injury being treated by @SFPD officers as they bring victim to pier 45 to meet our medics pic.twitter.com/eDwEPKerid — San Francisco Fire (@sffdpio) December 14, 2017 
  
 The victim is expected to be OK, according to San Francisco fire. 
  
 KTVU spoke to a couple of swimmers in the area who say seeing sea lions in the water is more common than before. They say if they see a sea lion in the water, they swim the other way and don't make eye contact because they will rush a swimmer and bump them. 
  
 The swimmers speculate that mating season could be one reason why the sea lions are seemingly more aggressive than normal. There are other theories that swimmers here may be impacting the sea lions. 
  
 Dr. Claire Simeon, a veterinarian with the Marine Mammal Center, published a study with the University of California at San Francisco in 2015 looking at sea lion and seal bites and scratches. 
  
 She said researchers talking to the members of two San Francisco swim clubs found only 11 such incidents over a period of three years, and one of those had actually taken place in Washington. 
  
 The study found no clear patterns or common causes among the incidents. While it was clear that approaching the animals could cause negative reactions, many of the swimmers did not appear to have done anything to provoke the attack. 
  
 "As these animals are wild, their behavior can be erratic," Simeon said. 
  
 Experts recommend that swimmers and beach goers try to maintain a safe distance from seals and sea lions, as they have sharp teeth and a strong bite. 
  
 "I don't think that people should be afraid to go into the water," Simeon said. "We're lucky to be able to share our coastline with these amazing animals." 
  
 "We really want people to leave seals be and enjoy the bay," Simeon said. 
  
 The SFPD Marine Unit will be advising local swim clubs of the incident. 
  
 Leslie Dyste and Alyana Gomez contributed to this story. |||||
Student:
A swimmer in San Francisco required multiple tourniquets and a trip to the hospital after being attacked by a sea lion Thursday, Fox 10 reports. According to the BBC, the 56-year-old man was swimming in the Aquatic Park area when he was approached by a sea lion. Police say he tried to scare away the animal by splashing water on it and yelling at it. Instead of leaving, the sea lion bit the man's right arm. He was rescued by a passing sail boat, which called the Coast Guard, the Los Angeles Times reports. “The boat saved his life,” San Francisco Police officer Matthew Reiter says. “Had that boat not seen him, this could have been a different story.” The man seemed to be doing OK, all things considered. “He was more worried about his clothes on the beach than he was about anything else,” Reiter says. “It was a good sign.” While sea lion attacks are rare, they aren't unheard of. Reiter says he hasn't seen a sea lion attack in two years on the marine unit. But swimmers in the area say they've been noticing more sea lions in the area recently, and a 2015 study found 10 incidents of sea lions or seals biting swim club members in San Francisco over a period of three years. The National Oceanic and Atmospheric Administration warns that sea lions are "unpredictable and can become aggressive quickly." Still, Dr. Claire Simeon, the lead researcher behind that 2015 study, tells Fox she doesn't "think that people should be afraid to go into the water." She adds: "We're lucky to be able to share our coastline with these amazing animals."