Deep sea MYSTERY: How researchers were STUNNED by bizarre creature 200m underwater

“As we descend into the deep, the pressure increases and the lights from above all but disappears. 

“200 metres down, we enter an alien world – the twilight zone a sea of eternal gloom. 

“Survival here means making the most of every last glimmer.”

Sir David, now 92, continued: “What we found was a squid, but this is one that only lives here. 

“Its right eye looks permanently downwards, but its left eye is much bigger and trained upwards to detect the silhouettes of prey swimming nearer the surface. 

“No wonder it’s nicknamed the cock-eyed squid.”