Nurse Shark
Scientific Name: Ginglymostoma cirratum, meaning “curled hinged mouth.”
er of competition for their food, they primarily like to hunt by their lonesome. Nurse sharks do not have a set predator that routinely feeds off of them. Although, scientists have found nurse sharks inside the stomachs of lemon sharks and tiger sharks. Most likely, this is because of how small the nurse sharks are compared to other sharks. Lemon sharks and tiger sharks feed off the nurse sharks as they are still pups and most vulnerable. A whale shark can be closely related to a nurse shark. A whale shark differs greatly in size than that of a nurse shark. The characteristics’ of a whale shark to a nurse shark are similar, both are slow-sluggish moving, filter feeders, both are known for being the “gentle” species of sharks, and they both have a remotely
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Groups of nurse sharks are also known to seek out reefs or caves, and these groups have been observed to be almost lying on top of each other. Geographically, nurse sharks can be found; in the Atlantic Ocean extending from Rhode Island to southern Brazil, in the eastern Atlantic extending from the Cape Verde Islands to Gabon along the African coast, and in the American Pacific coast extending from Baja California in Mexico to Peru. Their depth range extends from the intertidal zone down to a depth of at least 40 feet. They dwell on the sea floor in warm, shallow waters. Very little goes on in their habitat primarily because, nurse sharks are nocturnal hunters and rest throughout the day. Though they go out at night to hunt, nurse sharks are creatures of habit. Nurse sharks return to their point of interest resting sites, and they rarely
Low oxygen consumption rates were reported in this study, most likely due to the low standard metabolic rates of the nurse sharks. Nurse sharks also had a lower routine metabolic rate compared to other species, which was attributed to their slower swimming speeds. Metabolic rate increased with temperature. The cost of transport was lower than is found in other species. This was attributed to the nurse sharks inactivity and less streamlined body.
Narwhals Introduction Narwhals, the unicorns of the sea, are very mysterious creatures that are not widely known. They are whales with many fascinating features and historical value. This research paper answers the question, “What are Narwhals?”. General Description Monodon Monoceros, Latin for “one tooth, one horn”#; or Narhval, Norwegian for “corpse whale”, because its mottled coloration suggests a bloated corpse#. Narwhals are in the white whale family, along with the beluga, but are actually covered with spots of black, white, gray-green, and cream.
Killer whales are one of the most fascinating displays of ocean life. The killer whale has characteristics that are important to its survival in the ocean. It is interesting to know that killer whales have a plentiful diet. It is astounding to see how killer whales behave in the ocean. I plan to tell you about the killer whale, its characteristics, its diet, and its behavior in the ocean as well as the predation of the orca.
Beginning with the simplest one-celled organism, an extraordinary animal rose in the murky waters entitled to a non-comparable killing-eating machine. This organism has become nature’s most genuine and most successful creature that it has remained unchanged for over 250 million years. Nature finally invented the perfect king of the sea. This animal has given the sea it’s “living” adjective; in turn, it was entitled—the “great white shark.”
In Chinese tradition, Shark fin soup is called as “a celebration soup”, which people eat it to celebrate in various occasions. Moreover, people also believed that shark fin consisted of diverse nutrition values which provide them virility, wealth, and power(Wolchover, 2011). These beliefs lead to the beginning of poaching for sharks, the top of food chain in the sea world. Surprisingly, although people are aware of the decreasing number of sharks since the old days, around hundred million of sharks are still hunted each year(Heltus, 2013), to be served on luxury tables surrounded by those believers in things that they do not even prove whether the belief is reliable. Therefore, in the generation that people are mostly educated, sharks should no longer have to be continuously killed for their fins.
Shark nets have been implemented in locations across the world in response to shark sightings and attacks. Nets are submerged beneath the surface of the water, roughly 200 metres from the shoreline. The meshing is designed to be large to capture sharks, leaving them to struggle before eventually drowning under the weight of their own body. The meshing allows small fish to pass through, however captures larger fish and marine species. Shark nets provide no discrimination between common, vulnerable and endangered species, resulting in a high mortality rate for a variety of marine wildlife.
Ocras usually migrate with their food, and they also have seasonal migrations. (Sea World). The food they eat is fish, sea lions, squids, penguins,sea turtles, sea birds, seals, baleen whales, other toothed whales {dolphins}, walruses, sea otters, sharks, the can also eat humans, polar bears, reptiles, mooses, and other killer whales [that are dead](Sea World)(National Geographic). They are carnivores (National Geographic). Killer whales do not chew their food they swallow their whole or rip off chunks. Ocras hunt in pods and to confuse their prey they herd them to the top of surface then attack. They can also jump on land to get their food. Killer whales have cone like-shaped teeth that are thre...
These two types typically avoid each other at all costs. In the wild, orcas are predators, meaning they hunt down their food. The whole species has varied diets, depending on which region of the world they come from. “Resident whales feed on fish and squid. Transients feed on seals, sea lions, porpoises, and baleen whales” (Francis).
In 2015 only 59 shark attacks have occurred around the world compared to the millions of sharks killed by humans every year. Due to these accidental shark attacks people tend to think that sharks, especially Great Whites are evil creatures with malice intentions when attacks do occur; but, on the contrary that is wrong. Sharks are not the only beautiful and unique creatures in the ocean, they also play a vital role in our ecosystem; however, due to human interference they might not be around much longer, through awareness sharks can be protected from endangerment.
Thesis: Sharks should be conserved because they are an important part of the ocean, attacks are often incidental, and human behavior influences the behavior of sharks.
Most people think that sharks are large, fast-swimmers, and savage predators. This is true of some species and groups should be interested of the appealing aspects of biology found within it: all sharks have an excellent sense of smell; some can detect electrical discharges; some sharks give birth to one of the
Aristotle once wrote, “The voice of the dolphin in the air is like that of the human in that they can pronounce vowels and combinations of vowels, but have difficulties with the constants.” The dolphin is one amazing creature. Dolphins, whales and porpoises are all related. I am going to talk about all aspects off the dolphin from evolution and vocalization to behavior and intelligence.
The whale shark is a species with a fascinating ecology, life history, behavior, anatomy and physiology. Background The whale shark’s broad, flat head and large mouth make it very recognizable. Females typically grow to be bigger than the males and weigh anywhere from 47,000lbs to 66,000lbs as adults.