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Differences between octopus and squid
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Octopus and squid are very similar, but yet different in many ways.Have you ever thought of that?If you have ever seen them together you probably seen all their differences. These two sea creatures have many similar traits.Octopus and squid both have eight legs and no backbone.With their two eyes they can watch you.Octopus and squid breath out of their gills.A squid has two tentacles while an octopus has none.Squids can also change colors when they feel harmed.Although octopus can not change colors like squids they have a beak at the end of all their arms. Octopus and squid both eat small sea creatures and fish.Octopus love to eat any small crabs they see crawling around.The worms they dig up under the sea floor
In the coral reef habitat, food consumption is based on sunlight. The sunlight gives food to the plants, bacteria and algae, which is eaten by the plant eaters or herbivores, such as parrotfishes. The bigger carnivores, such as the Whitetip Reef Shark, in the ecosystem then eat those fishes along with the bacteria and plankton in the water. On the other hand, the deep sea is based on dead animal bodies or waste, shown in the fake whale carcass in the deep sea exhibit. Organisms of the deep sea feed on waste because sunlight does not have the ability to reach that deep in the ocean. Nektons are the fishes that feed on the waste produced by the epipelagic zone.
Orcas and Penguins are very alike and also very different. Such as, orcas and penguins both swim in the water and they both stay warm in the cold. The waters that they usually swim in are icy. They both use their resources to survive in the cold and in the water. Also they are both black and white!
... the arm raise to mean something more complicated or maybe even different from whatever stripe means by itself,” says Jennifer Mather. Mather is a psychologist who studies cephalopod behavior and teaches at the University of Lethbridge in Lethbridge, Alberta. , Her thinking this is intriguing, but it remains unexplored and still unproven. Besides camouflage, I think that cephalopods use the chromataphores for communication. There are documentaries about the Humboldt Squid where they were more aggressive toward humans in one isolated area than they were everywhere else. In the documentary it is seen that they flash bright red to white not only to show panic, but they show lower down toward more squids that when one squid was showing panic, the rest must have seen it as a sign danger was ahead. I’m not a scientist, but I’m almost positive that is communicating.
Marine biology and oceanography are typically confusing terms. The difference between the two is an oceanographer may study the population changes of squid and the effects that it causes, whereas a marine biologist
and zooplankton, both of which eat algae and are, in turn, eaten by larger fish.
The organism has a rubbery structure but still has a hard body looking shape. The rubbery coating helps it fit through tight spaces, makes it very flexible, and doesn’t let heat escape, so it’s always at a constant temperature. The rubbery coating also protects the organism from the high pressure of being down in the deep sea. The rubbery external covering makes it squishy and chewy to the organisms predating our organism.
The existence of mimic octopi is restricted to the islands of Indonesia, specifically off the coasts off Solawesi, and Bali (3). Surprisingly, the octopi have been viewed during the daylight hours, generally residing near sand tunnels, and holes (1). The octopi enjoy these mounds because they provide a significant source of food, including small worms, fish, and crustaceans. The octopus utilizes its arms to feel for prey, and then captures the food through the use of expanded webs. However, when the animal is attempting to hide itself from possible enemies, the Indo-Malayan octopus can transform itself into a variety of organisms, including fish, sea snakes, and anemones. If the octopus observes a cluster of damselfishes, it will change into a lionfish by swimming above the ocean floor, with arms extended beyond the body (2). The lionfish is known to possess poisonous spikes, which successfully deter the damselfish from preying upon the mimic octopus. Another possible transformation includes the sole fish. The octopus is able to propel itself in a similar manner by forming a leaf-shaped arm that moves it across the ocean floor effortlessly. The octopus's arms are also useful in impersonating the sea snake. Two arms are waved around to appear like a pair of snakes, while the other six are hidden from view. The octopus also changes its color and creates yellow and dark bands across the exposed arms.
Like all octopuses, they have eight legs, bulging eyes, and rounded bodies. They also have 2 eyes that are about ⅓ of the body and no bones. The blue ringed octopus is usually light brown to dark yellow in colour with thin blue rings. When the octopus is provoked, their skin will turn to a vivid yellow and the blue or clumps of rings will glow. Typically, 50-60 rings cover the octopus. Their special feature of the animal is their blue rings (that’s why they are named “the blue ringed octopus”). The octopus
The wasp and the spider have many similarities and differences. Have you ever wanted to know the similarities and differences between them? So come on and take the adventure with me to find the similarities and differences.
Crustacea is a large subphylum of Arthropoda, consisting of almost 52 000 described species, including animals like crabs, lobsters, shrimp and barnacles. The majority of these are aquatic, living in marine or fresh water environments, though some have adapted to living on land like some crabs and woodlice. Most crustaceans are relatively small, though there are some exceptions. All of them have a hard, strong exoskeleton, divided into two parts, which has to be shed in order to allow the animal itself to grow. They have a large circulation system, where blood is pumped around the body by the heart. Only some crustaceans have sexes separate, and those that are usually mate seasonally and lay eggs. The study of Crustacea is called carcinology.
People have known about the intelligence of cephalopods since the time of the Greeks and Romans. Anyone who has spent time watching an octopus can tell you just how smart they are. Both of these papers addressed the contemporary studies that proved, at least in the opinion of the authors, that octopi exhibited evidence of intelligence that was on par or close to on par with vertebrate species, such as dolphins, dogs, and humans. The studies listed in both
Some animals present in the abyssopelagic zone are some species of echinoderms such as sea cucumber and pig-fish, some types of squid and arthropods like the sea spider. The adaptation that some species of squid have is the coloring transparent of their body allowing them to become invisible to their prey in dark environments such as the abyssopelagic zone. Others animals in turn do not have eyes as these are not used in total darkness
This Jornal conducted research on the two-spot octopus, or Octopus bimaculoides, by sequencing the genome of this species. They found that “Coleoid cephalopods (octopus, squid and cuttlefish) are active, resourceful predators with a rich behavioural repertoire. They have the largest nervous systems among the invertebrates and present other striking morphological innovations including camera-like eyes, prehensile arms, a highly derived early embryogenesis and a remarkably sophisticated adaptive colouration system” (The Octopus Genome). I think this information is truly amazing because of how easy octopi
Although they swim in the ocean, the jellyfish do not have many other characteristics of fish, which makes it unique. The tentacles are used to paralyze small animals. The tentacles contain a poison which is ingested into other fish and people. In the long run these jellyfish are unique yet damage lots of things.
This central nervous system can be as simple as those found in the Platyhelminthes (flatworms), to those found in Cephalopods (for example squids, octopuses, and the cuttlefish), which are closely related to those in the Vertebrates. This vastly developed nervous system is bilaterally symmetrical and contains ganglia, nerves, connectives and much more, however, this nervous system has a more of a molluscan design rather than one like those in vertebrates. One reason for such complex nervous system is because of their active life-style, flexibility, and their complex behaviors depending on the extremity of circumstances of their environment or surroundings. Moreover, the cephalopods contain a higher cerebral and nervous function than compared to other mollusks (Budelmann,