In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.
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Question: The ancient world was full of strange animals that have gone extinct, such as a group of marine species with claw-like structures emerging from their heads. A new study suggests that these creatures were related to spiders and scorpions. Researchers discovered the fossilized remains of a species in southwest China that provides new insights into the evolution of animals in the modern era, scientists said. They report their findings in the journal Nature. Scientists believe that the creature -- 1 inch long, and with two pairs of eyes -- lived 520 million years ago and that it crawled or swam in the ocean. They were able to reconstruct the creature's nervous system to gain insights about its evolutionary relationships to animals familiar to us. "For the first time, we are able to use fossilised neural anatomy to sort out how fossil animals are related to animals today," study co-author Xiaoya Ma of the Department of Earth Sciences at the Natural History Museum in London wrote in an e-mail. This creature belongs to the Alalcomenaeus genus, and its place in the animal kingdom lies in "a group of weird extinct animals" called the "megacheiran" or "great appendage" arthropods, Ma said. The species of the Alalcomenaeus group had elongated, segmented bodies with about 12 pairs of appendages they used for swimming or crawling. They also had a pair of long, scissor-like head claws, most likely for grabbing or sensing. Scientists say the reconstruction of the new creature's nervous system is the most complete for an arthropod living at that time, in the Cambrian geological period. Discovery makes a splash: The rarest whale . The brain and central nervous system of the creature are organized in a way that is similar to those of the chelicerata, the group that includes horseshoe crabs and scorpions. This suggests a close evolutionary relationship between the ancient Alalcomenaeus and the living chelicerata. A distinct group of arthropods called the mandibulates includes lobsters, insects, centipedes and millipedes. Last year at the same site in China -- called the Chengjiang formation near Kunming -- Ma and colleagues discovered a 520 million-year-old crustacean-type nervous system in an animal called Fuxianhuia. Taken together, these discoveries suggest that by 520 million years ago, the two major groups of arthropods had diverged. Their common ancestor must have been older, researchers said. "This means the ancestors of spiders and their kin lived side by side with the ancestors of crustaceans," co-author Nick Strausfeld, neuroscience professor at the University of Arizona, said in a statement. Strausfeld's team used sophisticated imaging techniques to look at the inch-long Alalcomenaeus fossil. One kind of scan revealed that iron had built up in the nervous system as the creature fossilized. They also used a technique called computed tomography that reconstructs 3-D features. By combining these images and discarding any data that weren't in both, they were able to create a sort of negative X-ray photograph, "and out popped this beautiful nervous system in startling detail,"  Strausfeld said. It confirmed what scientists had believed from the creature's outward appearance: The extinct genus Alalcomenaeus was related to chelicerates (spiders, scorpions and others). They also saw that the brain in the fossil was like the brains found in modern scorpions and spiders. If researchers find a fossil with features shared by this creature and the crustacean-like fossil Ma and colleagues found last year, that could be a common ancestor of both. There's plenty more weirdness from ancient history to uncover. 18-foot oarfish discovered .

Answer: The fossil is 520 million years old and was found in China .
Using multiple images of the animal, the researchers discovered the nervous system .
They also saw the brain was like those of today's spiders, scorpions .
The work shows the early evolutionary differences, researcher says .


Question: (CNN) -- The hostage crisis in eastern Algeria is over, but the questions remain. Among them, exactly how many people are unaccounted for at a remote natural gas facility after three days of chaos that ended Saturday, leaving at least 23 hostages and dozens of Islamist militants dead. Some 685 Algerian workers and 107 foreigners were freed, the Algerian Interior Ministry said. Britain's BP said Sunday four of its workers remain unaccounted for. And Norway's Statoil said five of its employees were missing, while 12 others are now home in Norway, Algeria and Canada. "Search efforts are ongoing at the gas installation, looking for more possible victims. I fear the numbers will be updated with more victims later today when the search operation is expected to end," said Mohammed Said, Algeria's communication minister. The attackers came from six countries -- only three were Algerian -- and included Arabs and Africans, Said told state-run Radio Algeria. Algeria's military found numerous "foreign military uniforms" in its sweep of the In Amenas facility, its Interior Ministry said. Mauritania's Sahara Media news agency said Sunday it had a video from Moktar Belmoktar, who leads the Al-Mulathameen Brigade associated with al Qaeda in the Islamic Maghreb that regional media have reported was behind the attack. In it, Belmoktar said, "We at al Qaeda are claiming responsibility of this blessed guerrilla operation." Belmoktar has communicated with this and other news sites before, said Andrew Lebovich, a Senegal-based security analyst. But the news agency did not post the video, and CNN has not independently confirmed its authenticity. Eleven former hostages -- among them British citizens -- have gotten medical treatment and psychological counseling from the U.S. military at a U.S. naval base in Sigonella, Italy, a U.S. official said Sunday. The hostages were brought from Algeria to the base Friday, the official said, and are being flown to their home countries as their conditions warrant. The remains of one American hostage were also brought to the base, the official said. In a statement Saturday night, the White House said it was in close contact with Algeria's government to "gain a fuller understanding of what took place." British Foreign Secretary William Hague echoed those remarks, adding his government is "working hard to get definitive information" about each individual. Japan has 10 citizens -- likely affiliated with JGC Corp., an engineering firm that was involved in gas production in In Amenas -- who are yet to be confirmed safe, in addition to a number of dead. Opinion: Algeria crisis is a wakeup call for America . Such Islamist militant activity is not new to Africa, including recent violence in Mali and Somalia. Algeria's status as Africa's largest natural gas producer and a major supplier of the product to Europe heightens its importance to those who want to invest there. Yet that interest is coupled with pressure to make sure foreign nationals, and their business ventures, are safe. Youcef Yousfi, Algeria's energy and mining minister, insisted Sunday his country can keep its gas facilities secure and ruled out foreign forces coming in to help. "We are going to strengthen security, and we rely first on our means and resources," Yousfi said, according to the official Algerian Press Service. Raids turn deadly . Militants in pickup trucks struck the sprawling gas complex about 50 kilometers (30 miles) west of the Libyan border at dawn Wednesday, gathered the Westerners who worked there into a group and tied them up. The In Amenas plant is run by Algeria's state oil company, in cooperation with foreign firms such as Statoil and BP, and because of that employed workers from several countries. The kidnappers wielded AK-47 rifles and put explosive-laden vests on some hostages, according to a U.S. State Department official. Algeria said the attack was in retaliation for allowing France to use Algerian airspace for an offensive against Islamist militants in neighboring Mali. And Sahara News' report Sunday claimed Belmoktar said "40 immigrant Jihadists and supporters of Muslim countries" led the siege in retaliation for the Mali offensive. Read more: Mali takes key town as nations ready more troops . But regional analysts believe it was too sophisticated to have been planned in just days. On Thursday, Algerian special forces moved in because the government said the militants wanted to flee to Mali. The Islamic extremists also planned to blow up the gas installation and rigged it with mines throughout, the U.S. official said. Thursday's military incursion succeeded in freeing some hostages -- but not all. Some survivors described their harrowing escapes by rigging up disguises and sneaking to safety with locals, with at least one survivor running for his life with plastic explosives strapped around his neck. Several hostages died. And the Algerian military came under criticism from some quarters for unnecessarily endangering hostages' lives. Undeterred, the government followed with a second push Saturday. That assault killed the remaining hostage-takers but resulted in more hostage deaths. The army intervened "to avoid a bloody turning point of events in this extremely dangerous situation," the Algerian Interior Ministry said Saturday. "It was clear that the terrorists were determined to escape the country with the captives and to bomb the gas installations." On Sunday, an American lawmaker said the Algerian government turned down U.S. offers to help during the crisis. "They decided they were going to handle it their way," said Rep. Mike Rogers, a Michigan Republican who is chairman of the U.S. House Intelligence Committee. "They did not want us or the other hostage nations involved in the decision-making." British Defense Secretary Philip Hammond called the loss of life "appalling and unacceptable," while laying blame solely on the terrorists. Countries mourn dead, try to track down missing . While the military part of the operation is over, the searching and mourning is not for people in countries worldwide. In addition to combing the sprawling desert site, Algerian forces are searching hospitals and medical centers around the country, as well as towns and villages near the targeted site, according to a statement Sunday from Statoil. 'Mr. Marlboro': The veteran jihadist behind the attack in Algeria . Colombia . Colombia's president said a citizen was presumed dead. France . No known French hostages are unaccounted for, France's Defense Ministry said Saturday. One man -- identified as Yann Desjeux -- died after telling the French newspaper Sud Ouest on Thursday that he and 34 other hostages of nine different nationalities were treated well. Three others who had been held are safe. Japan . There are still 10 Japanese who have yet to be confirmed safe, JGC -- the engineering firm -- said Sunday. Malaysia . Three hostages were on their way back to Malaysia, the country's state-run news agency reported Sunday. But there is a "worrying possibility" that another is dead, while a fifth is unaccounted for, the agency said. Norway . Five Norwegians are missing, while eight are safe, Norwegian Prime Minister Jens Stoltenberg said. "We know that there are many fatalities," Statoil CEO Helge Lund said Sunday. "A new day without answers has increased our concern." Romania . One Romanian lost his life, the country's Foreign Ministry said Saturday. Four other Romanians were freed. United Kingdom . Three British citizens were killed, the Foreign Office said Sunday. Three other British nationals and a UK resident are also "believed dead," he said. Twenty-two other Britons who were taken hostage have safely returned home. United States . At least one American, identified as Frederick Buttaccio, is among the dead, the State Department said. Six freed Americans left Algeria and one remained. Read more: Algeria attack may have link to Libya camps . CNN's Paul Cruickshank, Slma Shelbayah, Kevin Bohn, Barbara Starr and Per Nyberg contributed to this report.

Answer: NEW: An Algerian official says Algeria doesn't need help securing its energy facilities .
NEW: Algerians are searching hospitals, villages and more for missing, Statoil reports .
The number of those killed in the crisis will likely go up, an Algerian official says .
A new video reportedly claims responsibility in the name of al Qaeda .


Question: LONDON, England (CNN) -- Britain's foremost aviation showcase celebrates its 60th anniversary this year. The Spitfire is one of the aircraft from Farnborough's inaugural show getting airborne once again to celebrate the airshow's 60th year. The 46th Farnborough International Airshow will commemorate the first show ever held in 1948 at this year's event in Hampshire which runs from July 14 to 20. "As we look back on the past 60 years, we also are excited to continue looking forward to the next 60 years," said John Cairns, Head of Services at Farnborough International Limited (FIL) which runs the biennial airshow. To mark the occasion, Farnborough's world-renowned flying display will include aircraft which flew at the first show like the Swordfish, Spitfire, Sea Hawk and Sea Fury. Adding a modern twist to the mix will be the debut of The Blades, the world's only globally accredited aerobatic airline. The airshow was first established as a way for the British public to see and learn about the best of aviation. Staying true to its original purpose, on both Saturday 19 and Sunday 20 July -- Farnborough's "public weekend" -- there will be a four-and-a-half-hour flying display. Highlights include perennial favourites the Red Arrows, the Royal Air Force aerobatic team who will close the show with their aerial gymnastics, as well as the debut of the Aero Sekur Shooting Stars, an Italian ladies' parachute team who will be providing daily skydiving displays. "Farnborough, in essence, has always been about innovation, and I am delighted that to a long line of distinguished 'Farnborough Firsts' I am able to add some very worthy new firsts, including the first ever women's parachute team to appear at the Airshow; the world's first aerobatic airline and the first business aviation jet to have been developed at Farnborough," continued Cairns. As well as displaying aircraft for the public, Farnborough has also established itself as one of the world's premier showcases for the aviation business world. This year, 1,500 companies from 35 countries as diverse as Colombia and Bahrain will be exhibiting planes and other technologies in a show that is predicted to be Farnborough's biggest to date. On the trade days which run from Monday 14 to Friday 18 July, business attendees will be able to see the world's latest aerospace innovations in the air. A full range of civil, business and defence aircraft will take part in flying displays. These include the Airbus AB380; HAL helicopters; the Kestrel JP10 (originally conceived at Farnborough airfield); the MiG 29; the EADS Eurofighter; the F 16 and F18; the MB 346; the AB 609; MB 311. In 2006, Farnborough trade week accumulated $42 billion worth of orders including $550 million in business aviation orders. The Airbus A380 also made its UK debut at Farnborough that year. "Our intention has always been to build on the success of the 2006 event, and to ensure that this year's show delivers an incomparable business service for our exhibitors and their customers, ensuring that they can gain maximum benefit and opportunity from attending Farnborough Airshow -- whether that is taking orders, making sales or developing new business," said Amanda Stainer, the Airshow's Exhibition and Events Director. To find out more about Farnborough International Airshow go to: www.farnborough.com/ .

Answer:
Farnborough International Airshow celebrates its 60th year in 2008 .
Flying displays will include Spitfire and Sea Hawk planes which first flew in 1948 .
Aerospace industry will be represented by 1,500 companies from 25 countries .
Professionals will be able to see the MiG 29 and the F 16 fighter jets in the air .