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8.7 million species on Earth, scientists estimate

A scientific paper suggests 86 percent of all terrestrial species and 91 percent of all marine species have yet to be discovered, described and catalogued.

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Histiophryne psychedelica is a highly atypical frogfish first described in 2009 from a handful of specimens photographed in Ambon, Indonesia, in 2008. It has a vestigial, non-functional lure and probably traps its prey inside coral holes and crevices or within coral rubble. The unusual pattern is thought to mimic the appearance of several kinds of hermatypic coral, and while varying slightly from individual to individual, appears to remain unchanged throughout the life of each individual.

David Hall /

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epa03708924 Franziska (C) wears a helmet and carries a shield during the recreation of The Battle of the Teutoburg Museum in Bramsche, Germany, 20 May 2013. The everyday life of Romans and the Germanic people is depicted at Museum Park Kalkriese during the Romans and Germanic people days. EPA/Friso Gentsch

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ANNAPOLIS, MD - MAY 20: The Herndon Monument Climb is the traditional culmination of plebe year at the United States Naval Academy. The plebes climb to the top of the lard-covered 21 foot high monument and remove the 'dixie cup' hat at the top replacing it with an upperclassman's hat. After completing this, the freshmen are called 'fourth class midshipmen.' This class completed the task in 1 hour 32 minutes and 43 seconds. The hat was placed by Patrick Lien from Orlando. (Photo by Sarah L. Voisin/The Washington Post)

The Herndon Climb

The Herndon Monument climb is the traditional culmination of plebe year at the U.S. Naval Academy.

This combination of Associated Press photos shows left, a neighborhood in Moore, Okla., in ruins on Tuesday, May 4, 1999, after a tornado flattened many houses and buildings in central Oklahoma, and right, flattened houses in Moore on Monday, May 20, 2013. Monday's powerful tornado in suburban Oklahoma City loosely followed the path of a killer twister that slammed the region in May 1999. (AP Photo)

Okla. tornado loosely followed path of 1999 twister

Monday’s powerful tornado in suburban Oklahoma City loosely followed the path of a killer twister that slammed the area in May 1999.

Lea Bessinger salvages a picture of Jesus as she and her son Josh Bessinger sort through the rubble of the elder Bessinger's tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds. (AP Photo/Charlie Riedel)

Tornado near Oklahoma City causes more damage

Rescue workers are searching for survivors after a twister carved a long path of destruction in a suburb of Oklahoma City. It was part of the...

FILE - In this undated publicity file photo, members of the Doors, from left, John Densmore, Robbie Krieger, Ray Manzarek and Jim Morrison, pose for a portrait. Manzarek, the keyboardist who was a founding member of The Doors, has died at 74. Publicist Heidi Robinson-Fitzgerald says in a news release that Manzarek died Monday, May 20, 2013, at the RoMed Clinic in Rosenheim, Germany, surrounded by his family. (AP Photo, File)

Ray Manzarek, founding member of the Doors, dies at 74

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US actress Rosario Dawson smiles on May 20, 2013 as she arrives for the screening of the film 'Wara No Tate' (Shield of Straw) presented in Competition at the 66th edition of the Cannes Film Festival in Cannes. Cannes, one of the world's top film festivals, opened on May 15 and will climax on May 26 with awards selected by a jury headed this year by Hollywood legend Steven Spielberg. AFP PHOTO / ALBERTO PIZZOLIALBERTO PIZZOLI/AFP/Getty Images

Eye on entertainment

Rosario Dawson, Alec Baldwin, Michael Douglas, Matt Damon, Bow Wow, Amy Poehler and more.

A man walks on sulphur and mineral salt formations near Dallol in the Danakil Depression, northern Ethiopia April 22, 2013. The Danakil Depression in Ethiopia is one of the hottest and harshest environments on earth, with an average annual temperature of 94 degrees Fahrenheit (34.4 Celsius). For centuries, merchants have travelled there with caravans of camels to collect salt from the surface of the vast desert basin. The mineral is extracted and shaped into slabs, then loaded onto the animals before being transported back across the desert so that it can be sold around the country. Picture taken April 22, 2013. REUTERS/Siegfried Modola (ETHIOPIA - Tags: BUSINESS SOCIETY TPX IMAGES OF THE DAY) ATTENTION EDITORS: PICTURE 2 OF 30 FOR PACKAGE 'ETHIOPIA'S ANCIENT SALT TRAIL' SEARCH 'DANAKIL DEPRESSION' FOR ALL

Ethiopia’s salt trail

For centuries, merchants have traveled to Ethiopia’s Danakil Depression with caravans of camels to collect salt from the surface of the vast desert basin. The mineral is extracted...

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