A dog sits on a buffalo who is cooling off in the Ravi River in Lahore on Aug 28, 2012. -- PHOTO: REUTERS
A turtle lies on top of an alligators back at the Summit Zoo in Panama City, Aug 10, 2012. -- PHOTO: REUTERS
A baby rhesus macaque (Macaca mulatta) plays with a tiger cub at a zoo in Hefei, Anhui province, Aug 2, 2012. -- PHOTO: REUTERS
Changmao, the ram and Chunzi, the doe stand together during a cross-species wedding ceremony at Yunnan Wild Animal Park on Valentine's Day in Kunming, Yunnan province, Feb 14, 2012. -- PHOTO: REUTERS
A dog feeds a Siberian Tiger cub inside a box at a zoo in Qingdao, Shandong province, Sept 19, 2011. -- PHOTO: REUTERS
A dog called "Shura" licks an orphaned roe deer it has befriended in the Simferopol zoo in Crimea, June 2011. -- PHOTO: REUTERS
A otorongo or jaguar (Panthera onca) named Daniela plays with her six week old babies at the Parque de Las Leyendas zoo in Lima, June 24, 2011. -- PHOTO: REUTERS
A seven-months-old yellow baboon (Papio cynocephalus) carries a Galagos also known as a bushbaby at the Animal Orphanage in the Kenya Wildlife Service (KWS) headquarters in Nairobi, June 10, 2011. -- PHOTO: REUTERS
A mouse rides on the back of a frog in floodwaters in the northern Indian city Lucknow, June 30, 2006. -- PHOTO: REUTERS
Two lion cubs and a dog play in the courtyard of a domestic house in Kharkov some 450km north-east of Kiev, Dec 15, 2005. -- PHOTO: REUTERS
A one year-old baby Hippotamus gets close to his adopted mother a giant male Aldabran tortoise at Haller Park in Mombasa. -- PHOTO: REUTERS
Mohammad Al-Hamoury holds a kitten and a puppy (right) at his house in Amman, Feb 26, 2009. -- PHOTO: REUTERS
Rabbits play with tiger cubs at a theme park in Sanya, in south China's Hainan province, Nov 6, 2006. -- PHOTO: REUTERS
A boxer rests as a Dachshund pup approaches it in Sagua La Grande, province of Santa Clara in central Cuba, July 18, 2009. -- PHOTO: REUTERS
A Ring-tailed Lemur (Lemur catta) and a parrot (Gebirgslori) are seen in their enclosure at the Hagenbeck Zoo in Hamburg, April 3, 2008. -- PHOTO: REUTERS
A four-month-old Amur tiger cub (top) plays with a dog in the municipal zoo, Royev Ruchey, in the Siberian city of Krasnoyarsk, Sept 2, 2005. -- PHOTO: REUTERS
A piglet sleeps on a tiger at Siracha zoo, 80km east of the Thai capital Bangkok on July 2, 2004. -- PHOTO: REUTERS
Fourteen inch tall Einstein, a minature horse, plays with St. Bernard Hannah (left) in a field in Barnstead, New Hampshire April 23, 2010. -- PHOTO: REUTERS
Jabulani a two-year-old elephant, has found a most unlikely maternal figure - Skaap, a female sheep. -- PHOTO: REUTERS
A Belington Terrier (L) and a Pomeranian Spitz look at each other during the International Dog Show in Afula, Oct 9, 2010. -- PHOTO: REUTERS
A rabbit rests with a tiger cub at a theme park in Sanya, south China's Hainan province, Nov 6, 2006. -- PHOTO: REUTERS
A German Shephard dog known as 'Pepper' sits with two endangered Bengal Tiger cubs and a Cougar cub (right) at the home of Veterinary [Surgeon Rob Zammit] in the outer Sydney suburb of Windsor, April 2, 2001. -- PHOTO: REUTERS
A dog feeds two Siberian tiger cubs and her puppy at a zoo in Hefei, Anhui Province, June 26, 2008. -- PHOTO: REUTERS
Smaigel the cat nurses her kittens and four puppies at her owner Mohammad Al-Hamoury's house in Amman, Feb 26, 2009. -- PHOTO: REUTERS
Changmao, the ram and Chunzi, the doe stand together during a cross-species wedding ceremony at Yunnan Wild Animal Park on Valentine's Day in Kunming, Yunnan province, Feb 14, 2012. -- PHOTO: REUTERS
A otorongo or jaguar (Panthera onca) named Daniela plays with her six week old babies at the Parque de Las Leyendas zoo in Lima, June 24, 2011. -- PHOTO: REUTERS
A seven-months-old yellow baboon (Papio cynocephalus) carries a Galagos also known as a bushbaby at the Animal Orphanage in the Kenya Wildlife Service (KWS) headquarters in Nairobi, June 10, 2011. -- PHOTO: REUTERS
A Ring-tailed Lemur (Lemur catta) and a parrot (Gebirgslori) are seen in their enclosure at the Hagenbeck Zoo in Hamburg, April 3, 2008. -- PHOTO: REUTERS
A four-month-old Amur tiger cub (top) plays with a dog in the municipal zoo, Royev Ruchey, in the Siberian city of Krasnoyarsk, Sept 2, 2005. -- PHOTO: REUTERS
Fourteen inch tall Einstein, a minature horse, plays with St. Bernard Hannah (left) in a field in Barnstead, New Hampshire April 23, 2010. -- PHOTO: REUTERS
A German Shephard dog known as 'Pepper' sits with two endangered Bengal Tiger cubs and a Cougar cub (right) at the home of Veterinary [Surgeon Rob Zammit] in the outer Sydney suburb of Windsor, April 2, 2001. -- PHOTO: REUTERS
Smaigel the cat nurses her kittens and four puppies at her owner Mohammad Al-Hamoury's house in Amman, Feb 26, 2009. -- PHOTO: REUTERS
From a baby macaque playing with a tiger cub to a ram licking a doe, friendships have no boundaries. Take a look at these images of animals with unlikely friends.