The giant squid remains largely a mystery to scientists despite being the biggest invertebrate on Earth. The largest of these elusive giants ever found measured 59 feet in length and weighed ... Rare video captured by divers shows a 2.5-metre giant squid swimming in the waters off Japan's west coast. Giant squid are known to live in the waters around the country and occasionally wash ... Giant squid have small fins at the rear of their mantles used for locomotion. Like other cephalopods, they move through jet propulsion—by pulling water into the mantle cavity, and pushing it through the siphon, in gentle, rhythmic pulses. Marine biologists venture deep into the icy waters of Antarctica in search of mysterious giants that manage to survive in this hostile place.Hunt for the Gia...