Essay on Bio 101 Week 4 Assignment

octopuses, and humans. It can blend into its environment (the sand) because of the brown

The octopus has eight arms, with 250 suckers on each arm for a total of 2000 suckers on their body. These suckers are very sensitive to touch, in fact, the octopus can differentiate between different objects just as well with their suckers as they can with their eyes. Some species have particular suckers that are larger

In Creatures Under the Deep Sea it talks about all kinds of animals from small things like little Octopuses called dumbo to huge things like a Vampire Squid. Vampire squids curl up into a ball when feeling scared or under pressured. The scientific name of this squid is Cephalopod.This creature also has glowing eyes and tentacles. This proves that life can thrive if their is just a little bit of light. The cute little Dumbo Octopus it's called is a little 8 armed creature. The Dumbo Octopus is an animal that lives on the ocean floor which is 9,800 to 13,000 feet deep. They are small creatures, around 8 inches tall. They feed off of worms and other underwater insects. We have only discovered five percent of the ocean, but we have still

Lastly, the squids and the octopus are the two species that have lost their shell altogether. They both have their mouth and anus at the bottom of their tentacles, but to this day scientists are still unsure of exactly why the octopus has lost its shell. The squid though has kept its shell for other reasons such as providing ridged structure for its muscles to move as fast as these creatures do to escape its predators. Some suggest to as why they both have lost their chambered shells, is that they were once deep sea creatures that adapted so that they can survive those depths which could explain why they lost the shells. Another reason for the octopus losing its shell could be the reason that it burrows and digs in which it could just be invalid to its tasks. Lastly, another reason for both squid and octopus losing their shell is because on how the predation of the dolphin pressured them into evolving into fast moving creatures that can grow up to monstrous lengths. For all of these Cephalopod evolutions,

The brain of many species of Cetacean, including whales, dolphins, and porpoises, are one of the largest relative brain sizes among extant mammals, characterized by having different structure and diverse neuronal morphology, which exhibit isometric scaling of cerebral matter with increasing brain size; this is a fact that violates the evolutionarily conserved cerebral scaling law. The Delphinoid brain size evolution may be driven by the adaptation to an obligatory aquatic existence that supports the presence of a collection of high developed sensory, cognitive, and sensorimotor abilities. In general, global enlargement of the cetacean brain may be associated with a prolonged maternal investment need it for extend the duration of glial and

Next, what do you think a octopus eats, and how you think it survives? The Giant Pacific Octopus

About a one-third of the bottlenose dolphins from eastern Australiahave shark bite scars; which suggest that they regularly meet predators. It has been thought that large whales migrate annually to reach their calving grounds: areas where killer whale densities are low. The prey species are thought to have evolved schooling behavior as a defense mechanism: where they swim together in large groups (Balance, 2006). These behavioral adaptations according to Balance (2009) have highly affected their: distribution, abundance, social structure, timing and reproduction modes, foraging strategies and speciation

Everyone might have once imagined dark environments and scary creatures which live in the deep sea. These childlike dreams are visualized in the popular novel, Twenty Thousand Leagues under the Sea. In the novel, the main character, Pierre Aronnax, searches for a mysterious sea monster while fighting with scary undersea creatures. Although many undersea creatures have been depicted in the novel, one of the striking deep sea creatures would be a giant octopus. This octopus is depicted as a scary creatures that threatens the main character. Many people might think the creatures are fake, but the giant octopus exists, which is also well known by today’s scientists.

The ocean has many relationships between various animals, but one of the symbiotic relationships in the ocean is commensalism between the clown fish and sea anemones. In this relationship, the clown

So, it must have unique skills to stay alive. It is weird how this reminds me of this homeless guy I used to know. He had no shelter to go to, no food to eat, not even clothes to wear. He would not spend his day waiting for someone to buy him food or invite him to his house. He would spend all day looking for a refuge to spend the night in, and looking for any job he could find. It did not matter to him as long as he got some money to buy food and silence his hunger. This guy was working so hard to satisfy his needs, and to survive in this life and not waiting for someone to offer him a hand. The same thing happens to octopuses when they use different tools to remain alive and sustain themselves. For example, to hide or disguise itself through camouflage and mimicry once predators have seen

Giant octopus are powerful by their arms strength meaning their pull is one hundred time more powerful than their weight. The reason why is because, giant octopus contains radial and longitudinal muscles on each arms. In other words, the combinations of these muscles is what make them strong and without either radial or longitudinal they're body would have no strength. Similarly, each octopus arms have up to 280 suckers, these suckers play an important role in an octopus life. For instance, giant octopus suckers contain thousand of chemical receptors which is used as a sense to defines objects and to grab onto their prays. Giant octopus possess statocyst receptors to detect angular rotation, to determine the body’s orientation, and used hair cells to hear. Fun facts, giant octopus have been known to be the only species sensitive enough to low vibrations. What is more, Pacific octopus eye is more common like a human eye which

The octopus, sometimes called the alien of the ocean, with its eight arms that range from as short as 33 in, to as long as 10ft, two rows of suckers running up each arm. Their ability to change their skin color, texture and manipulate their body to change shape, makes them the perfect predator. Though many researchers have been able to study the octopi’s behavior, they haven’t been able to get under the skin. This changed this summer, August 2015, after several years researchers finally have the entire layout of the octopus genome, meaning they have a total layout of the octopi’s genetic code that is present in the haploid cell. They chose the California two spot octopus, because of the simplicity of being able to raise the animal, taking a

For starters, the DNA of an octopus contains nearly 10,000 more gene codes than that of a human. Various clusters of these gene codes perform different tasks—and octopus genes are specially equipped to do very versatile things. For instance, six different octopus gene codes combine to produce an octopus's ability to rapidly camouflage itself. Another gene type, protocadherin, allows the development of neurons and neural transmissions.

Upon hearing the word “Octopus” what initial thoughts arise? A deadly sea creature hundreds of feet tall mounting its eight tentacles across an infatuating, yet intriguing ship, and then ultimately crushing its sailors into the mile-driven sea? Or, in many cases, one pictures a bulging brain and eight tentacles mounting itself onto an innocent prey and indifferently, engulfing until destruction. Yikes, how graphic! Suitably, thanks to modern technology, many of these perceptions have been distorted by a conclusive, yet ambiguous hypothesis– octopuses are deadly. Inconclusively, the nature of the octopus – Octopus vulgaris – is an extremely inquisitive and mitigated species.

Montgomery’s point of view was that octopus were characterized by their chameleon like skin color, textures and shape changes, to their eight-armed coordination’s, up to their playful intelligence. Montgomery experienced being around an octopus and how they acted when they were around other individuals. For example: Athena one of the largest octopus in the aquarium. Sy stated, “When I stroked her soft head with my fingertips, she changed color beneath my touch, her ruby-flecked skin going white and smooth. This, I learned, is a sign of a relaxed octopus. An agitated giant Pacific octopus turns red, its skin gets pimply, and it erects two papillae over the eyes, which some divers say look like horns” ( Montgomery 61). An octopus knows how to interact with the individual they come to contact with. Many may think that octopuses are not intelligent, but they are in so many ways. Octopus may perform task from opening jars, to escaping their tanks and hiding, to even “running” around avoiding to get caught. Montgomery points out that octopus can teach us about nature and consciousness of