Question

Common name of Octopus is
A. Cuttlefish
B. Devilfish
C. Flying squid
D. Squid

Answer 1

Hint: Octopus is a weird creature generally referred to as the monster or Devil of the sea. It has eight arms each of which has sucker tentacles for perceiving it’s prey. The tentacles are octopus has the ability to sense

Complete answer: The scientific name of octopus is Octopus vulgaris. They are named so, because of their eight arms and a huge brain. They live close to the floor of the ocean, rather than in shallow waters. They have a well-developed vision and are efficient at recognizing faces.
Cuttlefish is not the appropriate term for Octopus because it has a broad inner shell bone. It has eight arms and two long tentacles in front. It is known as a ten-armed cephalopod because of its eight arms and two tentacles.
Therefore, option (a) is not correct.
Squid is also a ten-armed cephalopod having eight arms and two tentacles. It lives in the open oceans unlike octopus who have a liking in the depths of the sea.
Therefore, option (c) and (d) are also incorrect.
Earlier, Octopus was considered as the devil of the sea by the men fishing or boating. They had a weird appearance which made them monstrous. So, due to their Devil-like appearance, they are known as Devilfish.So, the correct answer is “Option A”.

Note:
Octopuses are very clever when it comes to their brain capacity and vision. They also have the great camouflaging ability.
Octopuses have a venomous ink which they shoot when they sense any kind of danger.
Their squishy soft boy helps them squeeze into small nooks and corners and if they feel that they are not fitting they do not even hesitate to sacrifice their arm for it.
Their tentacles have suckers which are used to sense the objects around them.
Most importantly, octopuses have three hearts, one pumps blood, and the others pump blood through the respiratory gills. While swimming the heart which pumps blood stops so, the other two take over. That is why they prefer crawling rather than swimming.
The blue color of the octopus blood is due to hemocyanin pigment which transports oxygen during extremely low temperatures.