The Historic Observation

In March 2023, a team aboard the Schmidt Ocean Institute’s research vessel, Falkor, captured exclusive footage of a juvenile colossal squid at a significant depth of approximately 1,968 feet in the South Atlantic Ocean. This feat was accomplished using the remotely operated vehicle named “SuBastian.” Combining advanced technology with exploratory efforts, the observation sheds light on a species that has predominantly been studied through remains found in the stomachs of other marine animals.

Insights from Experts

Dr. Kat Bolstad, an associate professor at Auckland University of Technology, commented on this historic find, stating, “It’s exciting to see the first in situ [on site] footage of a juvenile colossal and humbling to think that they have no idea that humans exist.” She noted that for over a century, humans have primarily interacted with colossal squids through indirect means, such as via predator stomach contents.

Bolstad elaborated on the challenges researchers have faced in documenting these elusive creatures. Their large and sensitive eyes may lead them to evade bright and noisy research instruments, which has complicated efforts to observe them in their natural environment.

Details About the Colossal Squid

Colossal squids inhabit the deep ocean around Antarctica. They can reach lengths of up to 23 feet and weigh more than 1,100 pounds, making them the heaviest known invertebrate. Their anatomy includes specialized tentacles equipped with sharp hooks that assist in capturing prey and defending against larger predators, such as sperm whales.

According to Dr. Bolstad, characteristics of the observed juvenile squid included pearly eyes and translucent organs, features typical of the Cranchiidae family, often referred to as “glass squids.” As colossal squids mature, their appearance is expected to evolve, becoming less transparent as muscle mass increases.

What Lies Ahead for Research

The new footage offers scientists an unprecedented opportunity to study the behavior of colossal squids, particularly during their juvenile stages, which have been poorly understood until now. Despite the current knowledge, many aspects of their life, including diet, lifespan, and reproductive habits, remain largely uncharted.

Distinguishing Colossal Squids from Giant Squids

It is essential to differentiate colossal squids from giant squids. While giant squids can be longer, colossal squids are heavier and inhabit different geographical regions; giant squids are typically found in tropical and temperate waters.