Preview

The Characteristics Of The Horseshoe Crab, Limulus Polyphemus?

Good Essays
Open Document
Open Document
1179 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Characteristics Of The Horseshoe Crab, Limulus Polyphemus?
The Horseshoe Crab, scientifically named Limulus Polyphemus, is an ancient creature that not many people know much about. The Horseshoe Crab is part of the Limulidae family, which is the marine arthropods. The Horseshoe Crab’s closest relatives are Trilobites back from the Paleozoic which is coincidently when the Horseshoe crab first began to develop. (Reference 2) In modern times the Horseshoe crab is not labelled as a crustacean despite its name. The Horseshoe Crab is closely related chelicerates including spiders, ticks, and scorpions than real crabs. (Reference 3) The characteristics of chelicerates are a segmented body, a chitinous exoskeleton, molting, and jointed legs. (Reference 6). Through evolution these invertebrates have survived millions of years with minimal evolution and are beneficial to there animals in the ocean. The Horseshoe Crab also provides home to many organisms such as flat worms and small mollusks. These in turn also help the Horseshoe Crab by eating any undigested food and helping protect the vulnerable back of the crab.

Like
…show more content…
Since they are such an old species, Horseshoe Crabs are actually considered to be “living fossils” that haven’t evolved much in the last millions of years. (Reference 3) A Horseshoe Crab does not just walk around on its legs, it uses its jointed body and tail so maneuver around and actually swims upside down. Speaking of their legs, Horseshoe Crabs have the ability to regrow limbs such as their legs or tail. A scary as they may look, they cant hurt humans unless a human were step on them. Since Horseshoe Crabs can live to over 20 years old, Horseshoe Crabs must molt six times within their first year of living growing 25-33% each time. Even after that year they will occasionally molt. Horseshoe Crabs are extremely interesting creatures that can teach valuable lessons in many fields such as medicine and

You May Also Find These Documents Helpful

  • Satisfactory Essays

    1. The shrimp, like the crab and lobster, has a segmented body. All also have antennae, and use their antennae to feel out their environment.…

    • 268 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Crabeater Seal Fact Sheet

    • 297 Words
    • 2 Pages

    Location: Crabeater seals spend their entire lives in the pack-ice zone surrounding Antarctica, resting, breeding and moulting on the pack-ice, and feeding in the surrounding water.…

    • 297 Words
    • 2 Pages
    Satisfactory Essays
  • Best Essays

    Towra Point Report

    • 2542 Words
    • 11 Pages

    Soldier crabs alongside other species fight for resources, and this can have drastic short and long term consequences. Even small…

    • 2542 Words
    • 11 Pages
    Best Essays
  • Satisfactory Essays

    Bio 20 Final Review

    • 317 Words
    • 2 Pages

    a Bio 20 Final Review SA Phylum | Example | Characteristics | /36 | | | Porifera | Glass Sponge | No true tissue, use collar cells No movement as adult | Cnidaria | Jellyfish | Polyp or Medusa Nerve net | Platyhelminthes | Fluke | Nerve cells that act as a brain Live in bodies | Nematoda | Hookworm | Taper at both ends False coelom, parasitic | Annelida | Earthworm or Leech | Segmentation Hydro skeleton | Mollusca | Octopus or Clam | Mantle, Gills, True coelom Muscular foot, Adductor | Arthropoda | Lobster, Spider or Ants | Jointed appendages Molting , Metamorphosis | Echnodermata | Sea star or sand dollar | Spiny skin Regenerate lost/damaged parts | Chordata | Whale or Human | Notochord/backbone Tail, Dorsal nerve chord | Animal Phylum Class | Example | Characteristics | //28 | | | Agnatha | Lamprey | No JawsParasitic | Chondrichthyes | Hammerhead shark | No swim bladderPelvic fins and gill slits |…

    • 317 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    The Earth’s largest phylum is Arthropoda, including centipedes, millipedes, crustaceans, and insects. Insects are the largest and most successful class of animals on Earth. This success, zoologists believe, is attributed from certain biological traits such as their small size or ability to fly for some (Postlethwait & Hopson, 2010). The exoskeleton of most insects supports them inside but also protects them from outside. John Meyer, professor at NCSU, explains as a "suit of armor", the exoskeleton can resist both physical and chemical attack (2007). He also covers how their small size allows them to hide, flight allows them to escape, high fertility and high fecundity allows for a large reproductive potential, metamorphosis promotes survival, and their ability to adapt easily (2007). All these characteristics listed above amongst several others are the reason why insects are the most successful animals on earth.…

    • 344 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Kelp Crab Research Paper

    • 635 Words
    • 3 Pages

    On the left is one of many organisms in the kelp forest the Foliate Kelp crab. Kelp crabs originated from Animalia, on the kelp crabs back shell it is colored chestnut brown. The stomach of the Foliate Kelp crab is red they often use these colors as camouflage by attaching kelp to their backs. Kelp crabs are also known to grow from four to six inches long. The main food of the Kelp crab is kelp that's one of the reasons it's called the kelp crab. Kelp crabs also have many predators to such as octopuses, giant Kelp…

    • 635 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The brown recluse spider lives inside houses as well as in its surroundings. Inside homes, the arachnid lives in dark places, such as cracks, corners, seldom used clothes, curtains and inside furniture. Yet, it is very common for a spider to get trapped in showers and bathtubs because of their smooth surface, and there have been lots of cases in which spiders bit the legs of a person who was having a bath. Outdoors, the BRS is usually located underneath rocks or within hollow woods. If you live in areas where the BRS lives, you must be careful when manipulating garden objects such as boxes, piles of wood, pots, etc.…

    • 987 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The Peacock Mantis Shrimp

    • 1223 Words
    • 5 Pages

    The Odontodactylus Scyllarus, more colloquially referred to as the peacock mantis shrimp, gets its name from its bright peacock-like coloration, its shrimp-like size, and its mantis-like body structure. The mantis shrimp belongs to the kingdom Animalia, the phylum Arthropoda, the subphylum Crustacea, the class Malacostraca, the order Stomatopoda, the family Odontodactylidae, and the genus Odontodactylus (Wikipedia). This species, the Odontodactylus Scyllarus, belongs to a group of 400 other types of mantis shrimp whose lineage can be traced back using phylogenies 500 million years (Guenther). Typically, the size of a peacock mantis shrimp ranges from three to eighteen inches in length (Wikipedia). Because they live in sub-tropical and tropical…

    • 1223 Words
    • 5 Pages
    Good Essays
  • Better Essays

    The invading Asian shore crab (Hemigrapsus sanguineus), has been a growing cause for concern for over a decade in Southeastern Massachusetts. It is suspected that the species was first introduced in the U.S. as adults or larvae present in ballast water discharged from incoming global trade ships. The first specimen in the U.S. was recorded in Townsend Inlet, Cape May County, NJ in 1988. The first appearance in Massachusetts was near Woods Hole on Cape Cod in 1992. By 1994, the Asian shore crab was identified in my hometown of Fairhaven, MA. As a precautionary measure, the ballast water of incoming international trade ships are monitored to prevent and eradicate new introductions of the species. Researchers are also conducting experiments to…

    • 1651 Words
    • 7 Pages
    Better Essays
  • Good Essays

    Crab monkeys although they are the most common animal for lab research, tend to be aggressive. In the wild "the crab eating monkeys live in multi-male groups that include about thrity monkeys. Males of one group may emigrate to another group for mating purposes, thus allowing more variations in the gene pool. In this transition the male may replace a higher-ranking male that belongs to that group. This transition is highly aggressive and the adults are usually injuired. During this transition other male and female monkeys of the group will make open mouth threats" (1) .…

    • 385 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Blue Crab Research Paper

    • 593 Words
    • 3 Pages

    Also known as "beautiful swimmer," the blue crab is one of the more resilient of Chesapeake species, but its fate depends on many factors. With the drastic decline of the Bay's oysters, watermen began extending their crabbing efforts much later into the fall, the time they would normally have shifted to oystering. A decade later, the blue crab population has been cut in half! Many locals have made a career out of harvesting its seafood, and the annual harvest and many of its other attractions bring tourists and, in turn, revenue for the area. Blue crabs play a giant role in supporting the ecosystem and the community, and we need a way to help. Two solutions towards saving the native blue crabs would be to limit the amount of blue crabs harvested…

    • 593 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The Chesapeake Bay produces the largest amount of crabs in the United States. The Blue Crab or Callinectes sapidus, are mainly found in the deep waters of the open Bay among the waving strands of the bay grasses. The Blue Crab takes advantage of its' opportunities when it comes to food and feeds on live and dead fish, crabs, clams, snails, eelgrass, sea lettuce, and decayed vegetation and other foods which it is able to consume. Blue Crabs grow by the process of molting in which they shed or take off their outer hard shell and the soft shell under it eventually becomes another hard shell to help protect it from dangers which lurk and try to feed off the crabs. The difference between the male and female blue crabs can be told by the abdominals…

    • 1114 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Ecological Succession Lab

    • 736 Words
    • 3 Pages

    We identified the eubranchipus, a organism with similar characteristics to one of a shrimp. Another name for it would be the fairy shrimp. During this observation, only two eubranchipus were identified. We did not have as many eubranchipus as the other groups but we were able to put one under the microscope. This organism has very fast movement and many legs. Another observation we made was that they swim upside down instead of right side up. Bothe of he fairy shrimps were translucent. The colors of them are determined by the food supply of their environment. These organisms started off as dried out eggs but as soon was we added tap water, it made food sources available in order to survive , therefore allowing the eggs to hatch. On the fifth observation, one of our eubranchipus died as another one grew bigger. The surviving shrimp started off as being 0.8 cm and increased to 1.2 cm. This is probably because of the lack of resources and competition - survival of the fittest. Less protist of the same size were found and the water was more still due to the limited organisms living in it. The population of protists are decreasing because it is the food source of the eubranchipus (also cynobacteria). Again, this is because of the existence of a food…

    • 736 Words
    • 3 Pages
    Good Essays
  • Good Essays

    biology

    • 947 Words
    • 4 Pages

    They are similar because the mating was random; however, there is selection for thicker shell crabs which mostly eat thinner shells. Thicker ones got to live and pass off traits to their offspring. Thin…

    • 947 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Solutions in Chemistry

    • 521 Words
    • 3 Pages

    A certain species of crabs are kept as pets. These crabs are usually salt-water creatures. The owner must realize that this creature must live in a…

    • 521 Words
    • 3 Pages
    Good Essays