Squid engage in internal fertilization, but rather than using a penis for the transference of sperm cells, the males place a packet of sperm cells, called a spermatophore, into the femaleâ€™s mantle, or body cavity; however, individual squid species exhibit variations on this general model. Shortly after this sperm transfer takes place, the female excretes fertilized eggs into the water.Know More
Many male squid species possess long, specialized tentacles or arms for transferring spermatophores. In many cases, these tentacles break off once inside the female. Some species engage in elaborate courtship rituals that feature a “mating dance” and stunning visual displays in which the squid change colors rapidly. Females of some species only mate with one male while others are polyandrous and mate with up to three different males at three different times. In some species, the largest males are the most successful breeders while in others the males are not even as large as the females.
Most squid are semelparous, meaning that they only breed during one season before they die. While some species live long lives and are capable of breeding in consecutive seasons, many squid species experience a very high mortality rate. This makes it rare for squid to live long enough to breed twice.Learn more in Squid
Giant squids inhabit all the oceans in the world, although they tend to avoid warm tropical waters and frigid arctic areas. They hunt in the deep ocean at depths between 300 and 1000 meters.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 >
Scientists believe that giant squids live for less than five years. This estimate is based on study of giant squid remains washed up on beaches. Giant squids are thought to hatch from tiny eggs and grow at a tremendous rate to achieve their 60 foot long adult size.Full Answer >
Squid extract oxygen from the water using gills, just as fish do. These gills are located in the squid's mantle, the soft but muscular cavity behind the squid's head.Full Answer >