When notorious "Queen of Mean" Leona Helmsley died in 2008, many people were shocked that one provision of her will allocated $12 million for the care of her dog, a Maltese Terrier named Trouble. Yet as one psychoanalyst explained to the New York Times, it's not all that unusual for humans to show a distinct preference for animals over their fellow humans. "Humans tend to be very disappointing—notice our divorce rate," said Joel Gavriele-Gold, the analyst and also the author of a book entitled When Pets Come Between Our Partners. "Dogs are not hurtful and humans are. People are inconsistent and dogs are fairly consistent."

Axar.az presents 5 richest animals in the world:

1.Grumpy Cat

The Internet's favorite kitty—circa 2014 anyway—had to be Grumpy Cat, the pet whose seemingly ever-depressed frown helped it net a personal coffee brand, a Christmas movie, and nearly 1 million followers on Instagram. Grumpy Cat's worth has been estimated at $1 million and even $100 million. Her owner says the latter is an exaggeration, but it's not clear by how much.

2.Trouble

"Rich Bitch" has to be one of the all-time great headlines. Remarkably, the headline, for a story about how controversial "Queen of Mean" real estate developer Leona Helmsley left $12 million in her will to her fluffy white Maltese Terrier with the appropriate name Trouble, was published by The New Yorker rather than the New York Post like readers might expect. The tale about how the money was bequeathed to Trouble by Helmsley was a huge media sensation when she died in 2007. In fact, a judge later trimmed the inheritance down to $2 million. According to a 2011 obituary of sorts for Trouble in the New York Times, it was reported that the spoiled dog was known to be a biter, and spent her final years relaxing in luxury in Sarasota, Fla.

3.Gigoo

The only chicken to make the top 10 richest pets list, Gigoo was owned by British publishing giant Miles Blackwell, who sold his interest in the family business and retired to the country late in life to raise rare sheep and hens. When Blackwell died in 2001, he gave much of his fortune to charity and reportedly left some £10 million ($15 million in U.S. currency today) to his apparently beloved hen Gigoo.

4.Chunmun

For a while, the world's richest monkey was Kalu, a Congolese chimp who was once worth £40 million. But its owner, eccentric aristocrat Patricia O’Neill, lost her fortune before Kalu could inherit it. Today, the world's most spoiled monkey could very well be Chunmun, a long-tailed macaque monkey purchased in 2005 for the equivalent of $8 by an Indian couple who were ostracized from their families because of their interfaith (Muslim-Hindu) marriage. The couple says their business took off after adopting Chunmun, and they've thanked the monkey by raising him like a son, with home-cooked meals and much pampering. They even arranged an elaborate "wedding" for Chunmun in 2010, and in the couple's will the monkey is the sole heir to their home and business.

5.Conchita

The Chihuahua known as Conchita was described as the "most pampered dog in the world" even before her owner, Miami socialite Gail Posner, passed away in 2010 and left her a fortune that included a $3 million trust fund and a $8.3 million mansion on Miami Beach. Conchita, also known simply as "The Boss" to intimates, wore pearls, designer bikinis, Cartier necklaces, and Louis Vuitton bags. She also was a regular at Miami nightclubs and slept in a custom-made pink racing car bed.