Alan Robinson and Walter Macfarlane have known each other since they were in sixth grade.

And they’ve grown even closer with time.

These two best friends were like family.

Surprisingly, their true familial bond was confirmed by DNA 60 years later.

The two men from O’ahu, Hawaii, were born fifteen months apart and recently learned they are half brothers.

Robinson was adopted at birth, and Macfarlane was raised by his grandmother without knowing who his biological father was.

They grew up at Punahou School in Honolulu, where they were classmates and played football together.

“When we played for Punahou, we were both first string,” Macfarlane told KITV 4.

“We’re brothers, playing side by side.”

Later in life, they spent time together on the Aloha Airlines softball team and Robinson’s boat.

Macfarlane even showed up at Robinson’s wedding.

For much of their lives, the two men lived less than ten minutes apart.

They had no idea they were related or that they shared the same mother.

“It never crossed my mind,” Robinson said.

“That’s what’s really amazing.”

Even though they had no idea they were brothers, they behaved as if they were.

“This guy was like an older brother all along,” Robinson said.”

“We’d go skin diving; I’d be making noise in the water, splashing around, he’d be teaching me how to do it right.”

“He always came out of the water with a bigger string of fish. And I had the smallest.”

Macfarlane became curious about his past after 60 years of friendship.

He used DNA-matching websites to learn more about his ancestors.

“My older daughter Cindy really wanted us to look for my dad and said ‘Let’s get it done.’”

“So, the kids got me a gift,” Macfarlane told talk show host Steve Harvey.

A subscription to Ancestry.com was given as a gift.

Macfarlane’s daughter, Cindy Macfarlane-Flores mentioned to CBS News,

“So then we started digging into all the matches he started getting.”

Robinson, it turns out, was using the same website to learn about his family as well.

The two friends soon found that they were blood relatives.

“When we got the results back it was discovered that Alan wasn’t only my best friend, he was my brother,” Macfarlane explained.

The revelation, according to Macfarlane, was “a shock.”

“I had a younger brother that I lost when he was 19, so I never had nieces or nephews. I thought I’d never know my birth mother, I’d never have any nieces or nephews,” Robinson shared.

“It was an overwhelming experience, it’s still overwhelming. I don’t know how long it’s going to take for me to get over this feeling.

“This is the best Christmas present I could ever imagine having.”

But if you see these two men standing next to each other, you can tell they’re related.

They not only look alike, but they dress similarly too.

Their story wowed people so much that it went viral. On Harvey’s TV show, they received a standing ovation from the audience.

Watch the video below to see their incredible story unfold!

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Sources: YouTube – Steve TV Show, CBS News, The Washington Post