Squids

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 squid and the octopus are both very fascinating aquatic creatures. They both travel the ocean floor by jet propulsion, belong to the same kingdom, phylum, class, and subclass- Animalia, Mollusca, Cephalopoda, and Coleoidea, respectively- and live in saltwater tropics to the temperate zones of the ocean. However, with these and several other similarities, the squid and the octopus are extremely different, in their physiology, lifestyles and personalities, and diets.

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

shellfish and zooplankton such as foraminifera and pteropods. These organisms, especially zooplankton, are the base of the marine food chain, as they provide energy in the form of food for animals higher up the food chain. The levels of calcium carbonate, minerals that calcifying species use to build their exoskeleton, in the ocean are disturbed by the increased amounts of carbon dioxide that is being absorbed. This new absorption is causing some parts of the ocean to become unsaturated with this important compound, and therefore making them less available to the calcifying organisms that need them. Without these protective shells, organisms are unable to survive, leading to a rapid decrease in their populations.

Hawaiian bobtail squid, also known as Euprymna scolopes is a species of bobtail squid in the family-sepiolidae. Native to the Pacific Ocean and can found in the shallow coastal water of Hawaii-island and Midway island. It has a relatively short life span (3 – 10 months). However, it grows quickly and hatching, reproduce can be undergo after 2 months. Female which lay egg on the underside of coral ledges in shallow will die shortly since they can breed only once. Hawaiian monk seal, common predator of it. Hawaiian bobtail squid can grow up to 30mm in mantle length.

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

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

1. In module 1, you identified which species of lizards were most similar to one another based on relative limb length and toe pad size. In this module, you determined which lizards are more

The group of crabs known as fiddler crabs actually encompasses over 90 species and subspecies of the genus Uca that come from a variety of locations. Males and females are quite easily distinguished by their claws - the females have small claws, but the males have one very large claw (see photos of males and females). The largest fiddler crabs only reach a mature size of about 2 inches across their

Symbiotic relationships are those that evolve between two organisms that interact in a specific manner with each other. These can range from being facultative, where the relationship is not required by either organism, to interactions that are obligate and are required by both organisms to facilitate survival. There are many mechanisms and processes that bacteria and their hosts can use to initiate and maintain symbiotic interactions and a few examples will be described in this report.

The sepioteuthis lessonia or the big fin reef squid, is one of the smaller type of squids. Scientists discovered and started researching the big fin reef squid. They found the big din reef squid in the pacific and Indian oceans near rocks and coral reefs. The big fin reef squid has different pattern on its scales.

Sailors in Russian submarines patrolling the Arctic Ocean heard strange sounds called quackers. In this set of materials, the writer brings theories describing the origin of quackers. However, the speaker casts doubt on these theories and is in disagreement with whatever the writer mentions.

Squid and Octopi are two mysterious creatures of the sea which many people lack knowledge of. They both have many amusing similarities and differences when it comes to their homes, diets, and physical aspects. These two sea creatures relate in many ways, however there are countless unique characteristics between them.

Whale sharks usually hang out near the surface where waters range between 21 - 30 degrees celsius ( 70 - 86 degrees fahrenheit ). They usually spend their time in the coastal zones or on reefs. Whale sharks have the ability to dive 1700 meters ( 1.1 mile ). When they dive that far they have to endure temperatures as low as 7.8 degrees