Biology of a Squid

Squid biological squid is the most diverse and unique among all invertebrates. They are cephalopod molluscs, as well as parrots, squid and octopus. The carp is very evolved and has developed many other functions that are not common to most molluscs. The cephalopod fossil record dates back to Cambrian (about 600 million years ago). Structurally, squid only has minor changes to the basic theme common to all cephalopods. They are spherical or cigar shaped with two fins for stable movement during swimming.

The smallest squid is the southern Pygmyica (Idiosepius notoides), the length of the male is only 1.6 cm (less than 3/4 inch). The biggest squid - a huge squid and a huge squid - are also the largest invertebrates. Some researchers put huge squid and gigantic squid into the Architeuthis genus and other researchers separate them into Architeuthis and Mesonychoteuthis. The largest collected gigantic squid and huge squid are about 13 meters long (about 43 feet) long, but there is an unidentified report showing people over 20 meters (over 65 feet) in length.

The gigantic squid is not the biggest squid. Scientists knew bigger species since 1925, but fishermen did not capture adult specimens near New Zealand until 2007. Known as "gigantic squid", it is considered to be the largest creature without a backbone. In its own genus, Mesonychoteuthis hamiltoni exceeds all eight huge squid of Architeuthis genus. "On July 6, 1734, on leaving the southern coast of Greenland, we saw a monster of the sea, as it lifted, the head was at the same height as our main roof. The nose is long and sharp It almost blows water like a whale; it has wide nails; its body is covered with scales; its skin is rough and uneven; in other respects it is like a snake It rose and the length from the body to the whole ship appeared. "