Like octopuses squid are also cephalopods, i.e, their feet
originate from their head. We have discussed octopus earlier. today we will
discuss squid. If you want to know interesting facts about octopuses, click here.
Till date more than 300 species of squid have been
discovered. The size of the normal squids hover in around 50-60 cm. while the
giant squid can reach up to 13 meters.
They can swim faster than any other invertebrate.
They have the largest eye in the animal kingdom. The giant
squid have the eyeballs of the size of a basketball.
Squid show sexual dimorphism. A mature female is larger
than the mature male squid.
They have a very large brain and are considered to be
They possess fins, but unlike any other marine animal, fins
are not their primary source of locomotion. They swim backwards i.e, they swim
tail first rather than head first.
Unlike other molluscs squid don't have any outer shell
covering their body. The hardest part of their body is the beak. The beak is
made up of chitin and it is used to kill prey.
What do squids eat?
They are carnivorous i.e, they eat crusteceans, fish and
How many tentacles does a squid have?
Due to their visual similarities, squid are some times
mistaken for the octopus.
Unlike Octopuses the squids have 10 arms(8 arms and 2
tentacles). Like the octopus they squirt dark ink to distract predators and
Their skin is covered with chromatophores. Due to this they
can change their color to match their surroundings. Like fishes they also possess
The giant squid is the largest invertebrate animal in the
world. The Humboldt squid is very aggressive and it some times even attacks sharks.
Some squid have bio-luminescent organs in their body due to
which they are able to glow in the dark.
The giant squid can grow up to 60 ft and weights up to 1000
lbs. They have a large beak which is very sharp and resists bending. The beak
is made up of chitin and it is used to kill its prey.
For Interesting giant squid facts see the video below: