Among the adaptations of a giant squid are a complex brain, advanced nervous system and the largest eyes of any animal. Its two long tentacles lined with teethed suction cups allow it to grasp prey. It draws water into its mantle and forces it out the back as a propulsion system. Its ability to squirt dark ink helps to foil predators.Know More
Scientists speculate that the giant squid's large eyes enable it to detect bioluminescent light and tones of light in deep water. It is also able to detect such predators as the sperm whale from a distance. Giant squid feed on deep-sea fish, crustaceans and other squid. After capturing its prey with its tentacles, it brings the prey to its strong beak. Its tongue, which has teeth, rips it apart before it goes on to the esophagus.
The squid's propulsion system is aided by fins on the sides of the mantle, which it uses as rudders.
Though giant squid inhabit all the world's oceans, much is still unknown about their habits and range due to their deep-sea habitat. All scientists previously knew about the creatures was what they could learn from specimens brought in by fishermen or washed up on beaches. However, in 2004 Japanese scientists photographed the first images of a live giant squid. In 2006 an 11-foot-long female giant squid was brought in live by a team from the National Science Museum of Japan, but it died in the process of capture. In 2012 the Discovery Channel released the first video footage of a giant squid in its natural habitat.Learn more about Squid
Squids and octopuses, both cephalopods, are the most intelligent known invertebrates. Direct comparison of squid and octopus intelligence is not feasible, as squid are much more difficult to keep in laboratories for study.Full Answer >
According to National Geographic, the largest squid ever found measured 59 feet long and weighed about a ton. The squid was a "giant" squid, the largest of the more than 280 squid species found worldwide.Full Answer >
Legends of monster squids or kraken are probably based on sightings of the giant squid, a deep-sea animal known to live in the waters off Norway and Greenland where the kraken legend arose. Giant squids can reach up to 50 feet in length if their tentacles are included.Full Answer >
Glass squid are animals who live in the dark sections of the ocean. There are about 60 species of Cranchiidae (glass) squid, and a number of these animals are almost invisible.Full Answer >