With more than 40,000 followers on Twitter and 26,400 fans on Vine, it looks like Marutaro the hedgehog from Japan is one of the most popular hedgehogs on the Internet. And as his owner keeps on posting Marutaro’s pictures online daily, Marutaro’s popularity continues to grow. There are hundreds of cute photographs and videos of this little fellow, but the ones with little paper cut-out faces are probably the cutest. As Marutaro lies on his back, his owner gives him a variety of silly expressions and smiles. The 20 best of them will definitely boost your mood!

(fos) is the name of the first ephemeral installation by the multidisciplinary team (fos). It means light in Greek and melted in Catalan. In this project has been represented by a skin that covers both vertical and horizontal surfaces. The protected façade of the vegan restaurant Rayen at Lope de Vega street in Madrid has been illuminated for 4 days and nights by more than 250lm of yellow duct tape, painted décor items, pineapples and... a lamp. A visual game between perspective and colored volumes that gained the looks.

Trevor Olson, from Minnesota, dressed as the character “Joker”, poses for a photograph at New York's Comic Con convention, October 9, 2014, in New York City. The event draws thousands of costumed fans, panels of pop culture luminaries and features a sprawling floor of vendors in a space equivalent to more than three football fields in Javits Center. (Photo by Shannon Stapleton/Reuters)

It would have been so much better if the pictures created by Mister Blick were real. How wonderful it would be if these men were actually holding flowers, and none of these wars happened. Regretfully, all these wars have left their mark on the history of mankind. Wars are always bad. They bring nothing but destruction and terror to the regular people, while the big players make huge profits off of the suffering of the common folk. However, establishing dominance is an integral part of the human nature, and the desire to wage wars is simply an extension of this trait. Strong countries always suppress the weaker ones to gain even more power. Unfortunately, this is as inevitable as the sunrise or sunset. (Photo by Mister Blick)

Andrea Abarca, (C) leads an aerobics class in Los Guidos de Desamparados July 23, 2015. More than 300 women participated in a physical health program organized by Abarca, which aims to combat obesity and sedentary behavior in poor women living in a slum. The National Nutrition Survey shows that the Costa Rican population has 62.4 percent of adult men who are obese, while among women the percentage was 77.3, according to local media. (Photo by Juan Carlos Ulate/Reuters)

Club-goers dance at “Morning Gloryville” at the Ministry of Sound in south London August 11, 2015. Morning dance parties with names like “Morning Gloryville” and "Daybreaker" are gathering steam in cities across the world, giving rise to a movement known as “conscious clubbing”. Its founders aim to create the energy and community of electronic dance parties with fruit smoothies and coffee instead of the drugs and alcohol more common after nightfall. (Photo by Toby Melville/Reuters)

The 26th annual Visa Pour l’Image, the “Cannes Film Festival” of photojournalism kicks off, filling the French city of Perpignan with more than 3,000 of the world’s best photojournalists and photo editors, along with agencies from around the world. This year’s Visa Pour l’Image showcases 26 exhibitions around the city. Photo: Christians looting a Muslim shop in the “Combattants” district of Bangui. (Photo by Pierre Terdjman/Paris Match)

A photographer has taken an explosive set of images by igniting gasoline in midair. Rob Prideaux, 45, photographs fire and smoke and then creates patterns from it. The San Francisco-based artist captures the fire in the split second its visible by using highly arcane methods. Rob's Smoke and Fire series is his quest “to shape one of the more uncontrollable phenomena in nature”. (Photo by Rob Prideaux)