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)

Jo Jo performs at the Q102 s*xy Singles 2012 the at Hotel Palomar on January 26, 2012 in Philadelphia, Pennsylvania. (Photo by Gilbert Carrasquillo)

Conjoined twins Shivanath and Shivram Sahu have found a remarkable way to get to school – dropping to the floor and running like a spider.

David and Lana Fechter have recently adopted two adorable Siberian bear cubs that were rejected by their mother at a Chicago zoo. The two nine-week-old male cubs, Lewis and Clark, are being kept in an inside closure and are being bottle fed. When the twins get bigger and more independent, they’ll be be given a large natural enclosure with ponds and ridges to live in at Shalom Wildlife Sanctuary.

Kim Kardashian looks to have left her underwear at home as she heads out for an early dinner with boyfriend Kanye West in Miami on October 14, 2012. As Kim checked out her outfit in the reflection of her car, it became apparent that the reality star was not wearing any underwear as she showed off her see-through grey skirt. (Photo by Brett Kaffee/Thibault Monnier/PacificCoastNews.com)

Zookeeper Michael Horn holds up Kit and Kitty, the twin red pandas born in June on the first day of their introduction into their new enclosure at Tierpark Zoo on September 13, 2011 in Berlin, Germany. The red panda (Ailerus fulgens) is a rare mammal native to the eastern Himalayas and southwestern China. (Photo by Sean Gallup/Getty Images)

Twin baby panthers Remaong and Ferra cling to their basket while being presented to the media at Tierpark Berlin zoo on July 13, 2012 in Berlin, Germany. The two panthers were born in captivity on April 26. (Photo by Sean Gallup)

A polar bear plays with a pylon during celebrations marking its first birthday in an enclosure at Tierpark Hellabrunn zoo in Munich December 9, 2014. (Photo by Michaela Rehle/Reuters)