Maybe his bones back in New York could contain some clues.

I joined Richard and John as they examine.

The most impressive part of jumpers remains his huge skull.

One of the first things we see when we look at his skull is just how malformed his teeth are.

Yeah, yeah.

I mean, we can see this tooth here is really curved in this direction.

On on the other side is curved again.

There should have been straight.

Yeah, he wouldn't expect to see the tooth bent in this kind of way.

In a normal, healthy elephant, we can think of elephant teeth a bit like conveyor belts, so they have six teeth, but only ever one of them will be in wear on each side at any one time.

On another one will be coming in underneath and behind it to replace it at the time, which that tooth falls out.

When that tooth doesn't wear down enough, What happens is it gets stuck in the mouth and it stays there.

But the other tooth carries on developing a moving up behind it on because it's softer because it hasn't formed properly.

What happens is it hits the tooth that's impacted on Ben's.

Ben's out of shape.

You can see right here that resist gap.

All that sweet food.

Another inappropriate diet that jumbo is having could have gotten stuck and even got into the root in the gum where infection could have got started.

Or at least inflammation.

Probably pretty painful.

So Jumbo had terrible to think.

Yeah, I'm afraid so.

Poor thing.