Man's best friend? In this case, a dog is a duck's greatest pal.

A duck has been hanging out with a dog for three years now, hitching rides on its canine friend and faithfully following the dog around.

Reddit user I2izzo posted a series of photos of the odd couple on imgur.

"The duck is too fat to fly and has since claimed the dog as his lifelong mate. Wherever the dog goes the duck will always follow," I2izzo wrote, adding that the sweet friendship has been going strong in St. Louis, Missouri "ever since the duck was old enough to roam on its own."

[ More Good News: Anonymous donor gives $25K to Durham Humane Society ]

Other adorable unlikely duos we've seen here:

Kate, a Great Dane, and Pippin, the abandoned fawn she adopted.

Western gray kangaroo Love Bug and Dozer, Love Bug's canine best friend.

A cat befriending dolphins.

The inseparable pair of Duder the dog and Mac the horse.

These inter-species friendships have plenty to teach the rest of us. Why can't we all just get along?

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An anonymous donation will help Oshawa's Humane Society perform much-needed animal surgeries.Last Tuesday, a "mystery man" dropped off a $25,000 donation at the Humane Society of Durham Region in Whitby, Ontario.

"I was dumbfounded, just looking at it. My mouth fell open and I let out this scream and instantly burst into tears," animal health co-ordinator Ruby Richards, who received the bank draft from the young man, told the Toronto Star.

"Today a wonderful young man came into our shelter to make a donation," the shelter posted on Facebook last Tuesday. "He wanted no tax receipt and didn't want to leave his name. He just handed us an envelope and left. Inside this envelope was a note that said 'Life is a lot more valuable than anything money can buy! All I ask is that you help a stranger one day, with no expectation of gain.' In the envelope was a bank draft for $25,000."

The generous gift was a timely one, the Humane Society wrote:

"At this time the shelter is struggling with finding funds for many surgeries. There are so many animals and people in need. That someone who thought

This man is cycling through Australia with his 15-year-old dog. imgur/ellrank photo from http://imgur.com/gallery/hwXJjA man named Joseph is cycling through Australia with his 15-year-old dog, Zeus.

The best friends are touring the country together as a final adventure for the elderly dog, now deaf and turning blind.

"I don't want Zeus to just die, he has cared for me more than I have cared for him," Joseph told Ellie, who posted photos of their encounter on imgur.

Zeus sits in a small blanket-filled cart attached to the back of Joseph's bike. See a video of the traveling pair here.

People "just love Zeus," Joseph said of the new friends they've met on their journey.

Imgur users were moved by Joseph and Zeus' story:

"My dog is very sick and will most likely be euthanized today. I wish I could have done something like this for her!" wrote SilentAndDeadly.

"That is quite possibly the sweetest thing I have ever seen. There is nothing like the love between a person and their dog," wrote xroxy182x.

Joseph posts photos of their trip and his abstract pen art, which he freely gives away to friendly faces along the

Yesterday, Spencer West, who lost both legs to illness as a child, crossed the finish line of his 11-day trek from Edmonton to Calgary to raise awareness of the distances some people around the world must walk to get clean water.

WE DID IT!!! 300 kms done! #WeWalk4Water

— Spencer West (@spencer2thewest) May 16, 2013

West and his two best friends, David Johnson and Alex Meers, were joined by Survivor winner Ethan Zohn and former U.S. soldier J.R. Martinez for the final stretch of the journey.

300km for @spencer2thewest. Huge congrats to a courageous guy. twitter.com/EthanZohn/stat… — Ethan Zohn (@EthanZohn) May 16, 2013

Here's a shot of us walking. Raising $ to give clean water to 100,000 people around the world!!! ✌ instagram.com/p/ZWEgmzmPGy/

— J.R. Martinez (@iamjrmartinez) May 15, 2013

The group was welcomed by more than 1,000 cheering schoolchildren at Mountain Park School.

"I'm tired. My arms are killing me and I’m ready for a few days of sleep," West told reporters minutes after arriving

Thanks to an animal rescue group, a snapping turtle hit by a car has a second chance at life.

Earlier this spring, Porter the snapping turtle was hit by a car in Sarnia, Ontario. He suffered extensive facial injuries and "quite a bit of blood loss."

The severely injured turtle was brought to nearby Heaven's Wildlife Rescue, but the centre was unable to help the animal.

"We patched up his shell, but his upper and lower jaws were injured so severely," Peggy Jenkins of Heaven’s Wildlife Rescue told the Sarnia Observer. "The quickest way we could think to get him to the Kawartha Turtle Trauma Centre was flying him."

Enter Rick Woodall, a Windsor-based pilot who volunteers with Pilots N Paws, a national animal rescue group. He usually offers rides to relocate rescued animals to their new homes. This time, he offered to fly a turtle to the animal hospital that could save his life.

Woodall responded to Heaven's Wildlife Rescue's request for help — and transported Porter and another injured turtle

All you need is a love — and a little help from a rock legend.

On May 9, Sir Paul McCartney paused his concert in Fortaleza, Brazil, to let a fan propose onstage. The sweet moment was "a first," he claimed.

A bold concertgoer held up a sign at the show:

"Paul, I want to propose to my love onstage. Would you bless us?"

McCartney saw the sign and played along, giving the couple an engagement story they'll be retelling for decades.

"Listen, we have a special thing tonight. One of the signs in the audience was for a boy and a girl. And the boy said he wants to propose to his girlfriend onstage. What do you think?" McCartney asked the crowd before giving the thumbs-up sign. "Yeah? We gotta do it."

McCartney invited the love birds onstage where the husband-to-be dropped to one knee — after a little encouragement from McCartney — and proposed to his Beatles-loving girlfriend in Portuguese.

McCartney hugged the happy couple, then continued with his show.

In 2010, McCartney and his crew helped a fan

Ricardo Cerezo was cleaning out a cookie jar storing old lottery tickets when he discovered a winning one: it was worth $4.85 million.

"I can't believe I had $4.85 million in a cookie jar for over three months!" Cerezo said of his win. "I'm awestruck, this is unbelievable!"

Cerezo's wife wanted the kitchen cleaned up — the family was facing foreclosure on their Geneva, Illionois, home and had just months before they would be evicted — and told him to either check or toss their stash of old tickets.

"It was either take them, get them checked, or she was going to trash them that night," Cerezo told CBS Chicago.

So he took the tickets to a local gas station. One ticket won $10. The final ticket told Cerezo to file a claim.

"I thought I had probably won about $600," he said.

Cerezo double-checked the winning numbers on illinoislottery.com. His ticket matched all six numbers of the February 2nd Lotto drawing.

"When I realized we had all six numbers, it was like whoa, that shocking moment like can

Twenty-five years ago, shortly after entering retirement, Anthony Cymerys, now 82, started offering haircuts to the homeless.

The Hartford, Connecticut man heard a church sermon about the homeless and knew he wanted to do something practical to help the less fortunate around him. His skill set: cutting hair.

Every Wednesday, Cymerys, known locally as "Joe the Barber," sets up his barber's chair under a tree in Hartford's Bushnell Park. His homeless clients patiently line up on park benches, waiting for their turn for a hair consultation, cut and scalp massage.

"Some of them won't let anyone else touch their hair," Cymerys told the Hartford Courant.

Powering his clippers with a car battery, Cymerys offers his mobile-barbershop services for a flat rate of one hug per haircut.

The barber's practical generosity helps Hartford's homeless "not look homeless," increasing their odds of finding work.

Filmmaker J.V. Harvey tells Cymerys' story in his documentary, Ordinary Hero:

"It really is love. I