(CNN)-- Scientists studying the carcass of what they call the heaviest squid ever found have discovered it has eyes as big as soccer balls -- reportedly the largest in the world. The colossal ...

Colossal squid are not related to giant squid, which also grow up to 12m long, and colossal squid have much larger body and smaller tentacles than the giant squid, and are a much heavier animal.

Scientists know very little about the elusive giant squid, which lives at ocean depths of between 300 and 1000m or more. Much of what they do know comes from the remains of dead or dying specimens ...