OCTOPUSES: WHAT DO THEY DO? Octopuses, octopi or octopodes are one of the most interesting sea creatures in the world. They have been living on earth since 296 million years ago during the carboniferous period, based on the oldest octopus fossil found. Octopuses along with cuttlefishes and squids are known to be cephalopods which are characterized by a prominent head, a set of arms or tentacles, and 'mirror image’ body symmetry. Since they are invertebrates, they do not have a backbone which makes their beak, which is similar to a parrots’, the hardest structure of their body. Aside from having rounded bodies, bulging eyes, and eight long arms, octopuses have three hearts, nine brains, and copper-based blue blood. According to Eric March (2013), octopuses can do things like: opening a jar from the …show more content…
It is just strong enough to subdue its prey. In addition, their ink cannot harm humans that it can be used as an ingredient in dishes like black pasta. But not all octopus has mild or not harmful venom. There are ones who can really harm humans or worst, it can kill humans. One example is the blue-ringed octopus which lives near in Australia. Their venom causes paralysis that stops breathing. Octopuses are renowned for their intelligence and their use of tools. Certain species of an octopus like veined octopus builds shelters from sea shells, coconut shell, or human debris. An octopus enjoys hiding inside a glass jar that they find on the ocean floor, putting what would otherwise be trash to good use. This reason makes them special and important for the environment. Tests have been conducted with octopuses which showed that they both have long and short term memory. These studies have also helped humans to explore the way in which the human brain is able to store memories as well as to recall them at later times. It is also considered in some countries as food or
This system is able to process information quickly due to the short distances between neurons (Williams, 2011). Williams (2011) notes, by invertebrate standards, octopuses show exceptional cognitive mental capabilities that are rivaled only by some of the “higher” vertebrates, such as chimpanzees, dolphins, and humans. The decentralized design of the nervous system allows for decision making at different levels, i.e.: in the brain, or in the arms, which possess their own peripheral nervous system (Mather & Kuba, 2013; Stolzenburg, 1993). The arm’s nervous system has twice as much “neural firepower” as the brain and contains approximately three-fifths of all the body’s neurons (Stolzenburg, 1993; Williams, 2011). This portion of the nervous system is semi-autonomous, performing with minimal input from the brain but, when necessary, can exert centralized control over the arms (Godfrey-Smith, 2013; Williams, 2011). The arms also contain several sensory organs, including statocysts, olfactory organs and a system that is analogous to the lateral line in fishes (Alves et al.,
The outer tentacles probe for a potential meal, then the inner sensors decide if the prey is edible. They are covered in thick, blackish-brown, water-repellent fur, and have large scaled feet and a long, thick tail. This animal is by far one of the most interesting animals in the world, despite looking like a cross between a rat and an octopus. The way it behaves and utilizes its star nose is fascinating and makes it very unique when compared to other animals.
“Their habitat lies on the Eastern side of the Olympic mountain range, adjacent to Hood Canal.”. Because of the moistness of the rainforest and their specialized skin, they are able to keep from becoming desiccated for long periods of time, but if they get the chance they would prefer resting in pooled water. The tree octopus explores the world by both touch and sight. Tree octopuses have eyesight comparable to human. Besides the fact that it allows them to see their prey and environment around them, it helps in inter-octopus relations. Even though they are not social like us, they show each other their emotions through their ability to change the color of their skin: red indicates anger, white fear, while they normally maintain a mottled brown tone to blend in with the background. (Lyle
Although the Hippocampus spp. are placed into the same class as other organisms more traditionally viewed as fish, their morphology bears distinct differences in comparison to other bony fish. The various species belonging under the genus Hippocampus range in maximum size from 20 mm to 300 mm(Foster 8). Their physical appearance is distinct from other members of its class due to their "horse-like head, monkey-like tail, and kangaroo-like pouch."( Lourie et al 12) Morphologically, seahorses do not have scales like traditional fish, but rather posses bony plates covered by skin. The appearance of bony extrusions and skin ...
Many different squid exist, and along with different species comes different looks, however, all squid are based on a basic body plan. The average squid species range from as tiny as 2 cm to as threatening as two metres in length. However, Teuthids range from the Antarctic up-to-14-metres Colossal Squid (Mesonychoteuthis hamiltoni) to the tiny less-than-one-inch Grass Squid (Pickfordiateuthis pulchella). The elongated body, also called the mantle, is slightly swollen near the middle and tapers to a blunt point. At this point is the head, at which point the tentacles begin. Also at the head is the mouth of the squid, which has a sharp, bird-like beak used like teeth. All species of squid possess long, cylindrical bodies and an internal, blade-shaped gladius. A gladius is made of chitin, like human fingernails, and lends s...
I chose an interesting artwork; Octopus Mom, a drawing that is displayed in the CityArts Factory in Orlando. The drawing is of a woman with eight arms in the form of an octopus. Octopus Mom has objects in each one of her eight arms, these objects included a belt, duster and an infant child. The drawing is in a wooden frame and is surrounded around a room full of aquatic drawings. The Octopus Mom was in the aquatic gallery; which was one of seven galleries, this gallery included fish and mermaid portraits, a jelly fish projection and fish tanks with real fish. Octopus Mom portrays the limitless capabilities, independence and nurturing nature of mothers.
Many of them regret it in the end. The mantis shrimp has been known to break the glass of its enclosure flooding the area around the tank and killing anything that dwells there. The shrimp is also known to attack anyone that attempts to touch it, this can result in terrible bruising or requiring stitches. Another way people regret having the Mantis shrimp is when they try to grab it from behind like a crab, only to have their hand butchered by the serrated blades in the tail. The owners can also be hunted by the beast; if someone sticks their hand in the enclosure the shrimp can mistake it for a meal, slashing and stabbing before the victim even realizes what happened.
Jellyfish are an oviparous species, meaning that are able to lay eggs rather than having to carry their young. Because they lay podocysts in the sediment, a jellyfish’s’ environmental perception is key to the lineage in species of jellyfish due to survival through natural selection. The jellyfish species central nervous system ability for common perception of their environment is the essence of its existence. If the jellyfish does not correctly utilize its perceptions of its habitat its offspring may not survive. It may seem trivial; however, perception of different spectrums and magnitudes of light, temperature, salinity of the water, and wind allow the jellyfish to select ideal environments for their offspring. Podocysts are the cause of jellyfish bloom or non-bloom years the situations of the locations in which the podocysts are laid determine the success of an offspring of jellyfish. A study showed a significant difference in two environment conditions; very rare in well-aerated seawater at constant temperature and a setting with exposure to abnormally high temperatures low salinities, and burial in organic-rich mud. The extremities of higher temperatures and lower salinities were the ultimately the cause of massive blooms of the Nemopilema nomurai jellyfish (Kawahara et al.
You probably think horseshoe crabs are crustaceans, but you’d be wrong. They actually aren’t crabs at all, and there’s more about the horseshoe crab that you wouldn’t believe. This weird-looking marine animal survived two mass extinctions and lived in the Ordovician Period.
Squidward Tentacles is an employee at the Krusty Krab. He is a 34 year old male. He resides in Bikini Bottom. His hobbies include playing his clarinet and painting multiple pictures which he has false hope will one day be published in some museum. He has hatred for going to work, and is horrible with customer service. He exhibits a strong desire to fit in with a higher caste than himself. There have been many episodes though where when given the chance to prove himself worthy of a higher caste he will retreat to a safer place like his house. His esteem level seems very low. He never leaves his house other than for work either. He hates being social and that’s very obvious in every action Squidward carries out. He rarely dates and when he does there is never a second date. He is a healthy man of his age. He really doesn’t have many friends. There is his two neighbors Spongebob Squarepants and Patrick Star, they want to be friends with him but Squidward can barely tolerate either of them. When he is sad he usually turns to his music, painting, or bubble baths which he takes very often. His life goal or aspiration is to be a famous artist and musician. He’s a very smart individual but has absolutely horrible social skills.
The eye is an extremely diverse organ, ranging in complexity across and within animal phyla. Here, a comparative approach is taken to outlining the diversity of the eye forms within vertebrates and invertebrates. The eye morphology of a variety of organisms was examined. Eye function, and placement on the body was also considered. Here, variation in eye form is discussed in relation to the environment the organism is adapted to. It is shown that an organisms eye morphology functions optimally for the ecological niche it occupies. Evolutionary analysis is used to account for the emergence of the different eyes. Convergent evolution is used to justify the similarities in eye types seen in organisms of different species. This analysis begins with the simplest of eye forms composes of single cells, present in the zooplankton larvae. Such primitive forms are identified in mollucs, annelids, cnidarians, and are then compared to more advanced eye forms contain lenses. This comparative approach provides a breadth of examples of vertebrates and invertebrates, making visible, the diversity of eye morphology within the animal kingdom.
Have you ever wanted to slap eight people at once? Or if you're more of a mushy, touchy, feely person, have you ever wanted to hug eight people at once? An octopus can do either or both of these if they want to! So you know an octopus is lucky being able to do this but what's an octopuses habitat? Since they can slap eight things at once do they have predators? Or since we're on the facty facts subject where do they live?
Products in the Stingrae line includes:- squid, crab backs, crab meat, shrimps, prawns, lobster (live and frozen), flying fish, white salmon, pink salmon, counter caviar, fillets of white fish, mussels, octopus and a variety of other seafood products.