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  • Britannica.com
    10 Famous Names in the Espionage Game Riding Freedom 10 Milestones in U S Civil Rights History Let s Move Fact or Fiction Playing with Wildfire 5 Amazing Adaptations of Pyrophytic Plants Sports Culture Fact or Fiction Animals poison frog George Porter The National Audubon Society Collection Photo Researchers Dendrobatidae any of approximately 180 species of New World frogs characterized by the ability to produce extremely poisonous skin secretions Read more To live is to feel ourselves fatally obliged to exercise our liberty to decide what we are going to be in this world Not for a single moment is our activity of decision allowed to rest José Ortega y Gasset Science eugenics Courtesy of The National Portrait Gallery London The selection of desired heritable characteristics in order to improve future generations typically in reference to humans The term eugenics was coined Read more Photos This Chilean dependency famous for its giant stone statues is the easternmost outpost of the Polynesian island world Jeremy Woodhouse Digital Vision Getty Images Mount Fuji Japan s highest mountain has been dormant since its last eruption in 1707 Hiroshi Ichikawa Shutterstock com According to tradition the Chapel of the Tablet in the Ethiopian town of Aksum contains the Ark of the Covenant National Geographic Getty Images The Blue Nile rises from a spring near Lake Tana in northwestern Ethiopia Nicola Destefano Fotolia Galleries 11 Adorable Pocket size Frogs Argentina s Natural Beauty Penguins Jellyfish See All Galleries Trending Articles Black Panther Party Japan earthquake and tsunami of 2011 Open Door policy Jim Crow law Martin Luther King Jr American civil rights movement Great Depression Ottoman Empire E mc 2 Romanticism Lists All the World s a Stage 6 Places in Shakespeare Then and Now 7 More Domestic Animals and Their Wild Ancestors 10 Filmmakers

    Original URL path: http://www.britannica.com/ (2016-02-13)
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  • Encyclopedia Britannica Popular Topics Archive | Britannica.com
    Schism Pope Meets Patriarch February 11 2016 Behind The News Science Gravitational Waves Observed February 10 2016 Behind The News Society Supreme Court Halts Obama s Clean Power Plan February 10 2016 Australopithecus sediba Likely Preferred Soft Foods Behind The News Science Australopithecus sediba Likely Preferred Soft Foods February 09 2016 Behind The News Society Haiti Without a President February 09 2016 Behind The News Science Light Sensing Bacteria World s Tiniest Eyeballs February 08 2016 Spotlight Society Year of the Monkey February 05 2016 Behind The News Science Bee Pandemic Linked to Human Behavior February 03 2016 Spotlight Sports Recreation Super Bowl Sunday An Unofficial Holiday February 02 2016 Behind The News Science UK Green Lights Gene Editing of Human Embryos February 01 2016 Behind The News Arts Culture Centuries Old Painting Now Attributed to Bosch January 29 2016 Behind The News Science Ancient Babylonians Used Advanced Geometry January 28 2016 Challenger Spotlight Technology 30 Years After Challenger January 28 2016 Behind The News Technology AI Masters Game Much More Complex Than Chess January 28 2016 Behind The News History Gbagbo on Trial for Crimes Against Humanity January 28 2016 Behind The News Health Medicine Zika Virus on the Move in the Americas January 27 2016 Behind The News History Eichmann Papers Made Public January 26 2016 Behind The News Literature Language New Story by Beatrix Potter to Be Published January 25 2016 Spotlight Society The Haggis Burns Night in Scotland January 25 2016 Behind The News History Antarctic Adventurer Dies January 21 2016 Behind The News Science Early Human Massacre Discovered in East Africa January 20 2016 Behind The News Science A Planet Beyond Pluto January 20 2016 Behind The News Arts Culture Earliest Drawings of Volcanoes Discovered January 19 2016 Spotlight Literature Language Picturing Patricia Highsmith January

    Original URL path: http://www.britannica.com/stories/browse (2016-02-13)
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  • Encyclopedia Britannica Quizzes | Britannica.com
    Many Babies Frank Sinatra Quiz British Culture and Politics Leonardo DiCaprio Browse Quizzes by Category Science History Geography Literature Language Animals Food Music Sports Recreation Pop Culture Health Medicine Arts Culture Society Philosophy Religion Technology Save Your Score Login OR Register for Free Track your quiz stats Save your best scores Earn points and badges Compete with the community Leaderboard Newest Quizzes Romeo and Juliet Name That Surgery Earth s

    Original URL path: http://www.britannica.com/quiz/browse (2016-02-13)
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  • Browse Image Galleries | Britannica.com
    Belize Beyond Jaws Sharks You Probably Won t See in Movies Buenos Aires Butterflies Cacti Cairo Carnivorous Plants Castles Caterpillars Cells Charles Darwin Cheetahs Colorado River Comets Coral Cows Crocodiles Cycads Dogs Dublin Eagles Earth from Space Easter Island Eiffel Tower Eskimos The First Cloned Cat and Her Relatives Frogs Glaciers Global Warming Golgi Apparatus Grand Canyon Great Barrier Reef Great Wall of China Greenland Gymnosperms Homo Erectus Homo Habilis Homo Sapiens Honeybees Human Beings The Human Body The Human Eye The Human Muscle System The Human Nervous System The Human Reproductive System The Human Skeletal System Jamestown Colony Jellyfish Kings and Queens of Britain Las Vegas The Leg Leonardo da Vinci Life Lions Liverworts Machine Guns Meteorites The Middle Ages Morocco Mosquitoes Mount Everest Mount Fuji Mountains Mumbai NASA s 50 Most Memorable Photos New 7 Wonders of the World New York City Notre Dame de Paris Orangutans Owls Palace of Versailles Panama Canal Paris Passenger Pigeon Penguins Prenatal Development Primates Protozoans Renewable Energy Rivers Royal Weddings Sahara Savannas Sharks Siberian Huskies Skyscrapers Small Arms The Solar System Southeast Asian Arts Stars Statue of Liberty Texas Revolution Tornadoes Turtles United Kingdom United States Vincent van Gogh Volcanoes Whales World

    Original URL path: http://www.britannica.com/gallery/browse (2016-02-13)
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  • Encyclopedia Britannica Lists | Britannica.com
    the World s Deadliest Mammals 10 of the World s Most Dangerous Fish 9 Mind Altering Plants 7 Animals That Turn White in Winter Browse Lists by Category History Music Animals Geography Literature Language Arts Culture Health Medicine Science Sports Recreation Food Pop Culture Society Philosophy Religion Technology Editor Picks Editor Picks Britannica editors share their opinions insightful commentary and fun facts on a variety of topics of personal interest

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  • Healing the Schism? Pope Meets Patriarch | Britannica.com
    the persecution of Christians in the Middle East and Africa and by the Russian Orthodox Church s perception of Francis as being more willing than his immediate predecessors to negotiate theological differences between the faiths particularly regarding the primacy of the pope Read More on This Topic 1 Read more about the Schism of 1054 2 Who is Patriarch Kirill I 3 Who is Pope Francis QUIZ Christianity Quiz Take

    Original URL path: http://www.britannica.com/story/healing-the-schism-pope-meets-patriarch (2016-02-13)
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  • Gravitational Waves Observed | Britannica.com
    be observed When such large objects accelerate they create waves that cause space to expand and contract slightly By reflecting a laser beam over 400 times between two mirrors to get an optical path of 1 600 km 1 000 miles LIGO was able to observe a change in the distance between the two mirrors that was much smaller than a proton The waves came from two black holes 36 and 29 times the mass of the Sun and 1 3 billion light years away from Earth The black holes spiraled into each other to form a new black hole 62 times the mass of the Sun The 3 extra solar masses were converted to energy and emitted as gravitational waves This discovery has already been hailed as one of the most important of 21st century physics and the beginnings of a new field in astronomy Many physicists predict that some of those involved in LIGO s discovery will win the 2016 Nobel Prize for Physics Read More on This Topic 1 How does LIGO work 2 Learn more about gravitational waves LIST 6 Amazing Facts About Gravitational Waves and LIGO Catch a gravitational wave or two Recommended From the

    Original URL path: http://www.britannica.com/story/gravitational-waves-observed (2016-02-13)
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  • Australopithecus sediba Likely Preferred Soft Foods | Britannica.com
    those of genus Homo suggesting that the species might be either a close relative or even a direct ancestor of ours revealed some interesting results The first A sediba specimens were found and identified by American born South African paleoanthropologist Lee Berger in 2008 in South Africa Further investigation of the fossils in 2012 made the case that the species lived in a mixed woodland and that its diet was made up of hard crunchy foods such as bark and fruit The research published in 2016 however suggested that A sediba s jaws and teeth weren t capable of producing the forces necessary to chew foods like hard nuts Its jaws did not have the crushing ability that the jaws of other members of Australopithecus had and thus A sediba probably preferred a steady diet of softer foods Granted the crushing forces produced by the modern human jaw are limited too but the revelation that the jaws of many australopiths evolved to process that is crack and chew harder foods while the jaws of at least one australopith species did not was a bit surprising especially given past research The discovery offers further support to the idea that diet was

    Original URL path: http://www.britannica.com/story/australopithecus-sediba-likely-preferred-soft-foods (2016-02-13)
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