These adorable cats – which are twins – showcase their contrasting blue and green eyes. The cats have a condition called heterochromia iridis, which causes each eye to vary in color. (Photo by @sis.twins/Caters News Agency)

Britain's Prime Minister Boris Johnson gestures during a visit to Darnford Farm in Banchory near Aberdeen in Scotland on September 6, 2019. Prime Minister Boris Johnson heads to Scotland on Friday in campaign mode despite failing to call an early election after MPs this week thwarted his hardline Brexit strategy. (Photo by Andrew Milligan/Pool via AFP Photo)

Fumie Takino, 89, founder of a senior cheer squad called Japan Pom Pom, and other members pose for commemorative photos before filming a dance routine for an online performance in Tokyo, Japan, April 12, 2021. “It's dancing; moving your body is nice”, Takino said. “And the costumes are unbelievably showy. Some people join just so they can wear them”. (Photo by Kim Kyung-Hoon/Reuters)

A life-size interactive inflatable sculpture of Stonehenge called “Sacrilege 2012” by English contemporary artist Jeremy Deller on display as part of the “Inflation!” exhibition curated by Mobile M + on April 24, 2013 in Hong Kong. The inflatable artwork is one of six on display as part of the exhibition which is open from April 25, 2013 until June 9, 2013. (Photo by Jessica Hromas)

An ice swimming enthusiast dressed as Neptune takes to the frigid waters of Orankesee lake during the 27th annual "Winter Swimming in Berlin" on January 8, 2011 in Berlin, Germany. A local swimmers' group called the “Berlin Seals” invite ice swimmers from across Germany and abroad to the annual event. Members claim ice swimming is good for the body's blood circulation. (Photo by Sean Gallup)

A woman poses for her husband alongside a giant camera Thursday, November 7, 2013 outside the Historic Green County Courthouse in Monroe, Wis. Chicago photographer Dennis Manarchy created what's being called the world's largest camera. It's 35-feet long and 12-feet tall it's a working replica of a vintage accordion-style camera that produces 16- by 24-foot prints, the equivalent of a two-story building. The giant camera is on display in Monroe through November 17 because a Monroe company manufactured the specially-built trailer. Manarchy plans to tow the camera around the country to shoot photos of indigenous cultures. (Photo by Mark Hoffman)

“Snowflake (c. 1964 – November 24, 2003) was an albino gorilla. He was the only known albino gorilla so far, and the most popular resident of the Barcelona Zoo in Catalonia, Spain. Originally named Nfumu Ngui in Fang language ("white gorilla") by his captor, he was then nicknamed Floquet de Neu (Catalan for little snowflake) by his keeper Jordi Sabater Pi. On his arrival to Barcelona where he was given an official reception by the then Mayor of Barcelona, Josep Maria de Porcioles, in November 1966, he was called Blancanieves (“Snow White”) in the newspaper Tele/Exprés. But he became famous with the name given to him by Sabater when National Geographic Magazine featured him on the main page in March 1967, with the English name Snowflake. This name spread among the press (Stern, Life, Paris-Match) and was later translated to Spanish as Copito de Nieve. Sabater himself called the gorilla Floquet or Copi, and in the later years Nfumu. The asteroid 95962 Copito, discovered by Catalan astronomer J. Manteca, is named in his honour”.

A prototype battery-powered plane, called Greased Lightning or GL-10 is pictured flying at NASA's Langley Research Center in this undated handout photo obtained by Reuters May 1, 2015. The plane, which has 10 engines and can take off like a helicopter and fly efficiently like an aircraft, is currently in the design and testing phase. (Photo by Reuters/NASA)