April 16, 2025
Marine scientists have achieved a significant milestone in the study of deep-sea creatures. For the first time in 100 years since the species was formally identified, they have captured video footage of a juvenile colossal squid (Mesonychoteuthis hamiltoni) in its natural habitat. The momentous event occurred in March, when researchers aboard the Schmidt Ocean Institute’s research vessel, the Falkor (too), filmed the squid approximately 600 meters deep near the South Sandwich Islands in the South Atlantic Ocean.
Measuring about one foot long, this young squid was discovered using a remotely operated underwater vehicle known as SuBastian. The sighting is groundbreaking, as previous observations of the colossal squid had been primarily through unfortunate remains found in the stomachs of whales or as dying specimens caught by fishermen.
Dr. Kat Bolstad, an associate professor at Auckland University of Technology and one of the key experts on the footage, stated, ‘It’s exciting to see the first in situ [on site] footage of a juvenile colossal squid and humbling to think that they have no idea that humans exist.’ For much of the past century, researchers encountered these creatures only indirectly, mainly via their remains.
What makes this footage particularly intriguing is the squid’s translucent body and its defining characteristics, including rotating hooks on its arms, which differentiate it from other related species. As Dr. Bolstad explained, ‘Though they have been elusive, this footage may provide insights into their behavior and biology that we have yet to fully understand.’
Significance of the Discovery
The sighting not only marks an educational opportunity for scientists but also highlights the vastness of unexplored marine environments. The colossal squid can grow to lengths of up to 23 feet and weigh over 1,100 pounds, making it one of the largest invertebrates on Earth. Understanding its ecology is essential for developing strategies to protect it and its habitat.
Thom Linley, curator of Fishes at the Museum of New Zealand Te Papa Tongarewa, was on site during the discovery. He recalled the moment they spotted the squid saying, ‘Oh no. This might be important.’ His excitement mirrored that of his crewmates who, upon confirming the sighting, could hardly contain their enthusiasm.
This extraordinary discovery aligns with ongoing global efforts to catalog deep-sea biodiversity. Just weeks prior, the Falkor (too) also filmed the glacial glass squid, another elusive deep-sea species.
In conclusion, while this breakthrough represents a significant step forward in understanding colossal squids, it also reminds us of the multitude of mysteries still hidden beneath the ocean’s surface. Scientists remain hopeful that further explorations will unveil even more about these fascinating creatures. Interested folks should keep an eye out for continued developments in marine research as we dive deeper into our oceans.
