“An egg case or egg capsule, colloquially known as a mermaid's purse or devil's purse, is a casing that surrounds the fertilized eggs of some sharks, skates, and chimaeras”. – Wikipedia. Photo: OBX Skate (Raja eglanteria) Egg Case – Mermaid's Purse. (Photo by altereye1)

Participants take part in the world's first “Pokemon Go” competition in Hong Kong, China, August 6, 2016. The competition began around 2 in the afternoon local time when organizers began announcing the rules on their Facebook page. Contestants had to take screenshots of 12 specific Pokémon in three different districts. Apart from the 12 key Pokémon, participants could also catch designated rare Pokemons which would take off some minutes from their total time. The winner was 21 year old Frankie Chu. The champ took home roughly three hundred and eighty six dollars that he says he will use to pay his school fees. (Photo by Tyrone Siu/Reuters)

Sam Warren climbs in to a prototype combat vehicle during the PrepperCon expo Friday, April 24, 2015, in Sandy, Utah. Hundreds of survivalists and “preppers” are gathering in the Salt Lake City suburb of Sandy for the first annual PrepperCon, featuring demonstrations of underground bunkers, food storage, and armored vehicles. (Photo by Rick Bowmer/AP Photo)

A girl looks with comic disgust at a guy who falls asleep with a bottle of beer at a party; her friend laughs. (Photo by Edward Corbett/Rex Features/Shutterstock)

A photographer has done her best to guess what her dog is daydreaming about – creating a series of fantasy adventures around her unaware pooch as he takes his daily naps. (Photo by Caters News)

Rescue workers try to pull out a piece of an exploded Grad missile outside an apartment building in Vostochniy district of Mariupol, Eastern Ukraine, Sunday, January 25, 2015. Indiscriminate rocket fire slammed into a market, schools, homes and shops Saturday in Ukraine's southeastern city of Mariupol, killing at least 30 people, authorities said. The Ukrainian president called the blitz a terrorist attack and NATO and the U.S. demanded that Russia stop supporting the rebels. (Photo by Evgeniy Maloletka/AP Photo)

Daisuke Nagasawa, 49, has spent the past few years taking his two faithful cats, Daikichi and Fuku-Chan, around the world with him. Here: Daisuke Nagasawa travels nationally and internationally with his beautiful kitties Fuku-Chan and Daikichi. The two pose under the iconic Japanese cherry blossoms. (Photo by Daisuke Nagasawa/Caters News Agency)

“Festive preparation”. Baghnapara, Bardhaman, West Bengal, India. Two girls prepare for the Gajan festival. They will perform a play based on Indian mythology. (Photo by Krishnasis Ghosh)