Squid Vs Octopus

Moon Jellyfish are in the “Animalia Kingdom, Phylum Cnidarian, Class Scyphozoan, Order Semaeostomeae, Family Ulmaridae, and Genus Aurelia” ( Myers, 2016 ; Espinosa, ; 2016 ; Parr, 2016 ; Jones, 2026 ; Hammond, 2016 ; Dewey, 2016). The morphological description of Cnidarians are corals, sea anemones, jellyfish and hydroids. These cnidarians form a diverse phylum that contains ~9000 species, which live in aquatic (predominantly marine) environments. The phylum-defining trait of Cnidaria is the stinging cell, the nematocyte an extrusive organelle used for predation, adhesion and defense (Holstein, 1981; Lengfeld et al., 2009; Tardent and Holstein, 1982) (Steele and Technau; 2011). Also, this phylum, Cnidarians, are divided into two groups, “Anthozoa (sea anemones, corals and sea pens), which live as

The cephalopodor octopus is a marine organism that inhabits many diverse regions of the ocean. Its food source consists of crabs, small fish, clams, mussels and other marine animals. The octopus is a predatory animal and has developed many skills to aid in its survival in the environment it has adapted to.

First off, are the squid's ginormous eyes which are so big that they are the largest eyes of any animal on the earth, as big as 30 centimeters across (1). That is about 3 times the diameter of an average sized dinner plate. These huge eyes give the squid the ability to absorb more light so that they can see in the deep, dark ocean (1). It is exactly like how human's pupils expand in the dark. On the same topic of sight, the coloring of giant squids change from the ocean's surface to the deep sea (1). At the surface, squid appear pink or reddish orange, but in the deep water they look silvery or gold (1). This change in coloring no doubt is an adaptation to deep sea life, probably for concealment purposes. One of the squid's more unique body parts is their funnel; this is located underneath the squid's body and propels the squid by pumping water, obviously a remarkable adaptation for underwater life (1). The giant squid also has several body parts that help the squid feed. These are as following: feeding tentacles that capture the food, arms that guide the food from the tentacle to the beak, and the beak that slices the food into smaller pieces that the squid can consume (1). Giant squids are full of remarkable features beneficial for their

The legs carry the octopus and the head keeps the legs in control. But if an octopus isn't proportional, maybe the head was too big for the legs or the legs were too big for the head, problems would arise. This is a lot like needing a well balanced government. A federal government is a government which equally divides its power amongst one large government and smaller governments within itself and also has a high belif in federalism, which is the practice of dividing the state and central governments. In the US this can be seen through the national government and state governments: a good, evenly balanced octopus.

Starfish and crayfish are both invertebrates, but they have many differences. Last week,  our class did a dissection on each and learned more about them. This research paper will explain some differences between the two that were learned during dissections and by doing outside research.

First, a few octopuses were introduced to a closed glass box (in full view of potential predators) containing items such as rocks, sand, and algae which are found in their natural environments. Unsurprisingly, this resulted in the octopuses adapting effortlessly to their surroundings. Then, the items inside the glass box were replaced by a piece of canvas printed with a geometric pattern, something that an octopus would never encounter in its natural habitat. The colors of the canvas were not random, however, but corresponded to the pigmentation abilities of octopuses. Once again, the octopuses easily completed the task. Finally, the geometric

The 59-year-old author, Sy Montgomery, has written 20 books, each based on a specific research or expedition she has taken part in. Her studies, which she descriptively incorporates into her novels, have warranted her various book awards and acclaims. She plunges herself into the lives and mysteries of Earth’s wildlife in order to gain a further understanding of how particular organisms thrive in their wild, dangerous environments. Although Montgomery was no expert in the field of cephalopods, she quickly learned all she could about the intriguing invertebrates through fellow researcher, experts, aquarists, divers, and colleagues encountered throughout her studies about octopuses. Through diligent research via articles, studies, field

Deep in the west coast rainforest there is an endangered species called The Pacific Northwest Tree Octopus. They are 30-33 cm amphibious, that scout their lives through touch and sight. The Tree Octopus spends the beginning of its life in the rainforest. The rainforest has so much drizzle and dew, it keeps the threatened species from becoming shriveled and dead. The exceptional and profound creature has a very large brain to body ratio.

During the day, the squid bury itself in sand or muddy area near sea grass beds. Besides that, it forms camouflage by gluing sand grain to its body. Night, they emerge to feed. A type of bioluminescence sea creature. It will emit light from their ventral surface. The light emitted is adjusted to match the intensity of moonlight. Collaboration of Hawaiian bobtail squid's eyes and extraocular vesicle use to monitor the down-welling light via silhouette reduction. This behaviour called as counter-illumination. Thus, the squid can adjust the intensity of bioluminescence as it moves to various depth by modifying the ink sac, which function as a diaphragm around the

The Humboldt squid, or the red devil, obtains nutrients by herding fish against the rocks. They then flash red and white to disorient their prey and make them easier to catch. They pull their prey into their mouths with their barbed tentacles and tear it apart using their sharp parrot-like beaks.

They appeared at about the same time as the ammonites. The two groups have some anatomical and developmental traits in common that set them apart from the nautiluses, but they are much different. Ammonites relied on their shells for defense as well as buoyancy while coleoids had internal shells that they did not use for defense. Some coleoid groups have also discarded the shell as a buoyancy aid. Seen in Figure 3, Octopuses, and their close relatives, the vampyromorphs, have lost their shells independently. The squids have shells that no longer provide buoyancy but unlike octopuses, the squids kept their shell for support

The deep sea is home to many fascinating creatures that have yet to be explored by scientists for their features. These creatures can be seen as special for the way they are able to survive in the extreme sea environments. Three species, in particular, have interested scientists for their own unique ways of adapting: the giant squid, the zombie worm, and the yeti crab. Their ways of adaptations allow them to survive in the intense deep sea environments.

In 2004, the giant squid had been discovered in deep, inky waters (Schembri 1). These creatures had frequently been misconstrued as monsters throughout history, in sailors’ yarns, wives tales, and even official reports. With a length of 40 to 42 feet, the leap of faith does not seem so difficult. (Giant 1) Giant squids are not known anymore to sink ships like their Kraken persona, but they are extremely territorial, even fighting sperm whales to protect their homes (Coppens 4). Despite being capable of eating just about anything with meat on it, Giant Squids mainly feed on small fish and clams (Schembri 1). For millennia, the giant squid lived in the realm of legends. Its existence lied in the study of cryptozoology, or “the pursuit of wildlife

This paper is about octopus dofleni, which is a bottom-dwelling octopus that lives on coasts of the pacific ocean, from Northern Japan to California. This essay will provide a brief overview of its life, habits and other characteristics of this, intelligent and creative invertebrate and member of the Octopodidae family.

Sponges are one of the most primitive, ancient types of multicellular animal. The vast majority are marine, but a few species dwell in fresh water. Sponges are often found attached to rocks, reefs, or other animals, and feed by straining granular particles from the water. Their frequently irregular body shape can be rather large because their interlocking spicules form a harder skeleton, which are often found preserved as fossils. Sponges are made up of only a few varieties of cells, some cells are unique to a specific phylum and do not have a genuine nervous, digestive, or circulatory systems. For these reasons, they are not immediately ancestral to more complex animal