While not conclusive, evidence suggests the lifespan of the giant squid is no longer than five years. The speculation is derived from mineralized masses called statoliths in the deep-sea creature that produce growth rings used to measure age.
Adult giant squid grow to an average of 33 feet, with the largest recorded specimen measuring 59 feet long. The largest invertebrate in the world also possesses eyes 10 inches or more in diameter, the largest of the animal kingdom.
At 1,650 to 3,300 feet below the water surface, the giant squid is nearly impossible to observe in its natural habitat. Much of what scientists know as of 2014 is from observing dead species that washed ashore.Learn More
The squid and the octopus are different animals, although they both belong to the molluscan class Cephalopoda and, as such, are related. One major difference between the squid and the octopus is the number of arms. Squid have 10 arms compared to the eight of the octopus.Full Answer >
All squid are carnivores and eat mainly fish, shrimp, crabs and even other squid. They are ambush predators, often relying on stealth to sneak up on prey and capture it before it can escape.Full Answer >
Squid are an important food source for many different fish, including most of the large predatory species. Marlins, tuna and groupers frequently eat squid, and sharks and rays consume the mollusks as well. In addition to fish, dolphins, whales, sea mammals and oceanic birds predate on squid.Full Answer >
Squids protect themselves with several techniques and biological mechanisms to blend in with the surrounding environment, counter oncoming threats and defend themselves in the event of an attack by a predator or rival. There are approximately 500 species of squid, and all rank high in intelligence among other invertebrate animals.Full Answer >