General view of Chilean Calbuco volcano from Puerto Montt, located at 1000 km southern Santiago de Chile, Chile, 22 April 2015. Due to the eruption of the volcano with a smoke column 20 km high, authorities declared a red alert and ordered the evacuation of around 1500 inhabitants of Ensenada, Alerce, Colonia Río Sur and Correntoso towns. (Photo by Alex Vidal Brecas/EPA)

Is it a leaf? Is it tree bark? No, it’s the Satanic leaf-tailed gecko. Cleverly disguised as a rotting leaf, Madagascar’s camouflage king has red eyes, pointy horns and a taste for night hunting: it’s nature’s most devilish deceiver. The twisted body and veiny skin echo the detail of a dry leaf, which ensures the gecko blends in with its forest home. The mottled tail appears to have sections missing, as though it has withered over time. This mini-monster epitomises survival of the fittest, having adapted gradually to become today’s extraordinary leaf impersonator. (Photo by Thomas Marent/ARDEA)

Models painted in camouflage colours to blend in with the background pose for Chinese artist Liu Bolin's artwork “Dongji”, or Winter Solstice, on the second day after China's capital Beijing issued its second ever “red alert” for air pollution, in Beijing, China, December 20, 2015. In this artwork, Liu wants to express his concerns about China and its people, including air pollution problem, Liu told Reuters. (Photo by Kim Kyung-Hoon/Reuters)

A woman carries an umbrella during a heat wave in Rome, Italy, 16 July 2023. Italy is facing the third heatwave of the summer on 16 July bringing record temperatures. The new heatwave is forecast to peak on 18 July, when temperatures in areas of southern Sardinian may reach 48 degrees Celsius, according to forecasts. On 15 July, the health ministry has put on red alert major Italian cities. (Photo by Massimo Percossi/EPA)

A rescued red fox rests under a closet at “Pawsitive Beginnings” fox rescue sanctuary in Key Largo, Florida, USA on August 1, 2023. Pawsitive Beginnings is a nonprofit group that works closely with organizations in parts of the USA where fur farming takes place to find permanent placement for foxes when needed. According to Pawsitive Beginnings, about 300 fur farms operate in the United States and there are very few federal laws to regulate the treatment of these animals born in captivity, raised for one year, and then killed for their coats. (Photo by Cristobal Herrera-Ulashkevich/EPA/EFE)

Pinot noir vineyards in the famed Sta. Rita Hills AVA turn a vivid red, orange, and yellow, signaling the end of the grape harvest and approach of winter as viewed on November 26, 2023, near Buellton, California. Following the notoriety from the Academy Award-winning film Sideways, this buccolic farming region north of Santa Barbara has become a popular Wine Country stop for global and domestic tourists traveling between San Francisco and Los Angeles. (Photo by George Rose/Getty Images)

Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. It streaks white, and its Mohs hardness varies between 3.5 and 4. Its specific gravity is between 3.5 and 3.7. It crystallizes in the trigonal system, and cleaves with rhombohedral carbonate cleavage in three directions.

Eduardo Salles (Mexico City, 1987) is advertiser, designer, illustrator, writer and professor at the Miami Ad School. And a professional procrastinator!, he says. Ex Creative Director of Nike, Kit Kat and Red Cross Mexico. He has won awards as diverse as Cannes Lions (advertising), Walter Reuters prize (journalism) and Juan Rulfo Short Story Award (literature).