What is a squid? Detailed answer

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What is a squid? Detailed answer

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What is a squid?

In the days when Columbus sailed the seas, one could hear stories of long-armed monsters that rose from the water to sink a ship or drag a sailor to the bottom of the ocean.

These stories were exaggerations. Such monsters never existed, and sailors may have seen giant octopuses or squids. Both of these creatures belong to the molluscs, a family of cephalopods, because their legs are divided into long, arm-like tentacles that grow around their heads.

A typical squid has an elongated, lean body with triangular fins at the edges, a short square head with well-developed eyes, and ten tentacles. Below these tentacles (or arms) are rows of suction cups reinforced with strong, rigid rings. Two of these tentacles are longer and more flexible than the others. Suckers are concentrated at the tips of the tentacles, forming something like a "hand". Two long tentacles are used by the squid to grasp its prey. The remaining eight serve to ferry food into the squid's mouth, and also to hold it while it is chewed by its hard jaws located around the mouth in the center of the circle formed by the tentacles.

Deep under the mantle, or skin, is a cartilaginous plate, which is the remnant of a shell that the squid apparently once had. There are various squids, and one of them, the giant squid, is the largest invertebrate on Earth. Some individuals of the giant squid caught in the North Atlantic reach a length of 16 meters (with extended tentacles). Another group of giant squid reaches two meters in length. The squid, like the octopus and sepia, is able to release an inky liquid into the water to darken the surrounding water.

There is a group of phosphorescent, that is, emitting light, squids. Light organs are located on their mantle, tentacles, inside the cavity of the mantle and around the eyes. At night they seem very beautiful. Another squid, called "flying", is able to fly over the surface of the water.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Which woman in ancient Egypt was depicted with a man's beard?

In 1490 BC, Pharaoh Thutmose II died suddenly. His wife, half-sister and co-ruler Hatshepsut, the guardian of her infant adopted son (Thutmose III), declared herself pharaoh, explaining this by the alleged prediction of the god Amun.

The artists depicted Hatshepsut with a beard and in men's attire. Her reign was the time of the cultural and economic prosperity of Egypt, which was facilitated by the policy of peace pursued by the queen, but during her reign Egypt's possessions in Palestine and Syria were almost lost.

In 1468, Thutmose III overthrew her stepmother from the throne, and then ordered her to be killed and her name removed from all temple inscriptions and royal scrolls.

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