Squid

• Squid have 10 arms, but two of them are longer and called tentacles.

• Squid have very good eyesight and can see in color.

• Squid can squirt a cloud of ink from a sac inside their mantle to confuse predators and escape.

• Squid have three hearts and blue blood.

• Squid can swim very fast by expelling water through a funnel-like organ.
  Some species can even fly out of the water for short distances by using their fins and arms as wings.

Squid is a type of marine animal that belongs to the class of cephalopods, which means "head-footed" animals.
The squid has a long, tubular body with a head that has two large eyes and a mouth with a sharp beak.
It is also has 10 arms or tentacles, 8 of which are shorter and have suckers along their length, and 2 of which are longer and have hooks or suckers at their ends.
With the help of arms and tentacles, this mollusk catches prey such as fish, crustaceans and other squid, and also defends itself from predators.
It can also change its color and shape to camouflage itself or communicate with other squids.
The squid has a siphon, which is a tube-like organ near its head that can squirt water or ink.
Using the siphon, the squid can move through the water with jet propulsion or create a cloud of ink to confuse or distract enemies.
They are found in all oceans of the world, from shallow coastal waters to deep-sea habitats.
Squids vary in size, from a few centimeters to more than 10 meters in length.
Some of the largest squids are the giant squid and the colossal squid, which are rarely seen by humans.
They are an important part of the marine food web, as they are preyed upon by many animals, such as whales, dolphins, sharks, seals, penguins, and seabirds.
In many cultures, especially in Asia and Europe, squid are also eaten by humans.