Why Is the Elusive Colossal Squid So Hard to Come Across?

Though rarely seen, the colossal squid lurks deep beneath the surface.

By Sara Novak
Jul 3, 2023 1:00 PM
3d rendered illustration of a colossal squid
(Credit:SciePro/Shutterstock)

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We’ve known about the colossal squid for nearly 150 years. Zoologist Japetus Steenstrup first reported on the species in 1857 after reading reports of it washing up on ocean shores.

But there’s still a lot that we don’t know about it because it’s so hard to study. Its reproductive patterns, mating and hunting patterns are still largely unknown because we hardly ever see it in action. Nonetheless, ever since Twenty Thousand Leagues Under the Seas, we’ve been captivated by this supersized cephalopod.

How Big Is a Colossal Squid?

As long as a semi-truck and weighing as much as a ton — the colossal squid lives up to its name. With a massive beak and eyes the size of a human head, this enormous animal with eight arms and two extra-long tentacles has mainly remained elusive for much of human history.

But in recent years, as humans have become better equipped to dive deeper into vast swaths of unchartered oceans, we’ve enjoyed a few colossal squid sightings. 

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