How Big Is the Giant Squid? A Look at Its True Size
The giant squid, also known as the king squid, chief squid, tyrant squid and so on, is the largest living invertebrate in the world and the largest group within the squid order of the cephalopod mollusks. It lives in the deep sea. Since it was first discovered and research samples were obtained in the 18th century, little has been known about its habits because the samples found are few and mostly incomplete, and the academic community has not yet reached agreement on defining the species.
Giant squid hatchlings are somewhat smaller than those of ordinary squid. It is said that the largest giant squid in the deep waters of the Pacific and Atlantic Oceans can reach a body length of about 20 m and weigh about 2 to 3 tonnes, making it the largest invertebrate in the world. It is extremely fierce in temperament, feeds on fish and invertebrates, and can fight with giant whales. In fact, the "giant squid" generally can grow to a maximum of 18 m long and 900 kg in weight.
The giant squid did not grow from an ordinary squid, but is a unique species within the squid family. Generally speaking, their size is determined by the amount of food and the nutritional value of that food. From this it can be seen that they eat a lot, but their metabolism is much slower. Therefore, the joules of energy needed to support each kilogram of body weight are much lower.
To many people, the deep-sea giant squid is the ultimate recluse. It is speculated that they spend the vast majority of their lives in the darkness of the deep sea, and only surface after death or when dying, or are found after being washed ashore by the tide. But by the time people find their bodies, these bodies are either incomplete due to decay or have been gnawed to pieces by carnivores in the ocean. Therefore, it is not surprising that 130 years have passed since this animal was formally confirmed by scientists, and what people know about it is still pitifully little. One world-famous giant squid researcher even joked that we know far more about dinosaurs than we do about the giant squid.
Scientists speculate that this is because the giant squid may live at depths of 200 to 1000 m below the sea surface, a depth that is difficult for people to reach. This speculation is based on two things: first, fishing boats occasionally caught giant squid while deep-sea trawling; second, people have found the hard beaks of giant squid in the stomachs of sperm whales. Sperm whales generally catch food at depths of 10 to 1000 m below the surface, and only occasionally do they go to the seafloor to catch food.
On July 10, 2007, a giant squid with a body length of 8 m and a weight of 250 kg was found on a beach in southern Australia. Scientists said this could provide important clues about the habits and habitat of this mysterious animal. The dead squid was found on Ocean Beach on the west coast of Tasmania. Biologists said its widest part reached 1 m, and from the top of its body to the very end of its tentacles it was 8 m long; while alive it may have been even longer, because two of its tentacles were severely damaged. It weighed 250 kg.