Expert reveals why over 1,000 bodies were never recovered from the Titanic wreckage

An expert has revealed what they think happened to over a thousand bodies that were never brought back to land after the Titanic sank.

We've all seen the 1997 hit movie with Leo and Kate focusing on the lives - and one particular love story - of those onboard the great RMS ocean liner just before it sunk.

However, only a glimmer of the movie shows the wreckage of the Titanic, where a reported 1,160 missing passengers likely ended up.

Around 300 bodies were able to be recovered from the wreckage after the RMS Titanic sunk in April, 1912.

However, this was only around just over 20 percent of the amount of people who were actually on board the ship, as per Titanic Facts.

So, what happened to the estimated 1,160 bodies who sunk with the ship? Why were they not recovered and what's happened to them over 100 years later.

Maritime archaeologist, historian and senior vice president of archaeology firm SEARCH Inc., James Delgado has since weighed in on the matter.

Over 1,000 people's bodies have never been recovered from the Titanic's wreckage (Pictures from History/Universal Images Group via Getty Images)

In an interview with the Mail Online last year, Delgado voiced scientists believe there 'could be a possibility' that 'some semblance of human remains' left inside the ship.

"But this is a science we don't know much about, particularly in the deep ocean," he added.

Pictures taken of the wreckage have provided 'very compelling' evidence to suggest where the bodies came to rest by showing where 'pairs of shoes' had 'splayed,' however, ultimately no bodies have ever been spotted.

Delgado previously spoke out about the wreckage in 2012 after the National Oceanic and Atmospheric Administration - of which he was director of maritime heritage - released an image from the wreckage of a boot lying on the seabed.

He told the New York Times: "There are people inside. The articulation of the coat and boots are highly suggestive of someone coming to rest here."

His theories echo with Titanic director James Cameron's reporting of what he's seen among the wreckage.

Clothing has been spotted among the wreckage but not bodies (Brittany Murray/MediaNews Group/Long Beach Press-Telegram via Getty Images)

Cameron has previously said he's 'seen clothing' and 'shoes' which 'would strongly suggest there was a body there at one point'.

However, the director similarly echoes he's 'seen zero human remains' so it's a fact which cannot be confirmed.

If the bodies did come to rest within the boat, it's not a surprise no one's been able to spot them when surveying the wreckage, many likely having decomposed before the wreck was even found in 1985.

However, Titanic expert Robert D. Ballard previously told the New York Times he 'would not be surprised if highly preserved bodies' did remain in a specific place among the wreckage - the engine room 'deep inside the ship'.