Two strangers were co-workers together for two years before making life-changing discovery

Two men who worked together for a couple of years made quite the discovery about each other.

Nathan Boos and Bob Degaro had been working at the same haulage firm for a couple of years when they discovered that they were actually related.

US man Nathan always knew he had been adopted, and didn't know his biological parents.

His adopted parents knew who his biological parents were but hadn't told him since he hadn't asked, but then his adoptive mother told him that he was friends with his biological dad on Facebook.

They worked together at the same place for two years before discovering they were father and son. (Youtube/CBS47 KSEE24)

She pointed out the profile of his work colleague Bob and said he had been Nathan's biological father all along, and they'd already been working together for a couple of years by this point.

Speaking to CBS, Bob explained that he got a message from Nathan over Facebook asking if he knew his biological mother and he said that she'd been his ex-wife.

You can probably see where this is going.

Bob had two other children with his former wife, but had given Nathan up for adoption was a 'difficult' decision caused by financial difficulty.

"Back then I wasn't much of a dad, his biological mom had chosen the adoptive parents," Bob explained of the family connection.

"Because they were somewhat related, distant cousins I believe. But I didn't know that.

"It's still kind of a shock, there's days I'm not sure exactly what to say or how to act, he is my son but we didn't have that father son relationship growing up, we became working partners before we knew what we really were."

Nathan said that he was taking the revelation that a man he'd been working with for two years was his biological father 'one day at a time'.

Considering they turned out to be pretty similar and even ended up working at the same place, it would point towards some evidence that family members can live incredibly similar lives even if they don't know each other.

Compare Nathan and Bob's story to that of the 'Jim twins', identical twins separated at birth and adopted by different families who went on to lead almost identical lives.

They even named their dogs the same, each married two women with the same names, drove the same car and liked the same kind of beer.

Perhaps there's more to all of this than meets the eye.