Look: Unusual animal friendships around the world

A Bengal tiger and cougar cubs sit with a German shepherd at a veterinarian's house in Sydney, Australia.

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.

A baby monkey, a lion cub and tiger cubs play at the Guaipo Manchurian Tiger Park in Shenyang, Liaoning Province.

A cat plays with mouse in a courtyard in Medvode.

Two lion cubs and a dog play in the courtyard of a domestic house in Kharkov, Ukraine.

Roza the goat and a roe deer cub are seen at a local park of miniatures in Bakhchisaray, Crimea. The newborn roe deer, named Silver Hoof, was found and then brought to the park, where it was adopted by a goat and now neighbors with coatis.

One-year-old white tiger Bombay plays with 4-year-old Dalmatian Jack at the Circus William in Berlin. The two animals lived peacefully together in the same enclosure for a few months.

A grey crow and cow are pictured in a Gaushala or cow sanctuary in Barsana, India.

Mohammad Al-Hamoury holds a kitten and a puppy (R) at his house in Amman, Jordan.

Pusha the cat, which adopted four orphaned baby squirrels and currently feeds and lives with them, lies at a local park of miniatures in Bakhchisaray, Crimea.

A wolf and a donkey share a cage in Patok.The donkey was brought into the enclosure to be fed to the wolf.

Dairy cows nuzzle a barn cat as they wait to be milked at a farm in Granby, Quebec.

A lion cub caresses a domestic cat as another lion rests in a private house in Kharkov, Ukraine.

A turtle lies on top of an alligator's back at the Summit Zoo in Panama City.

A dog rests on a buffalo near Ravi River in Lahore, Pakistan.

A dog licks the head of a Jacob sheep, in Ramot Naftali, Israel.

Brown bear cub Medo plays with the Logar family dog in Podvrh village, central Slovenia. The Logars, a Slovenian family, adopted the three-and-half-month-old bear cub that strolled into their yard.

A monkey helps a parrot get rid of lice at a wild animal park in Shenzhen, China.

Andreyka, a 10-month-old female bear cub, plays with Rommi, an Alaskan malamute, at the Siberian Zoo in the settlement of Listvyanka, Irkutsk Region, Russia December 9, 2020. The bear cub, which was found in a weak condition earlier this year, now play-fights with the Alaskan malamute, who adopted her and has seen three generations of bear cubs brought up in the Siberian zoo and released back into the wild.

Palma the dog plays with a 4-month-old Amur tiger cub (L) and a 2-month-old Sumatran tiger cub in the municipal zoo 'Royev Ruchey' in Krasnoyarsk, Russia.The dog, which had a puppy of its own, nursed the tiger cubs after the mothers refused to nurse them.

A black swan feeds carps at a wildlife park in Shenzhen, in south China's Guangdong province.

A mouse rides on the back of a frog in floodwaters in the northern Indian city Lucknow, India.