The fertilization is internal due to the male chimaera’s pelvic fins or claspers that they use to grab and hold onto the female chimaera during copulation. It is hard to study the development of the Chimaera due to the deep-water habitat in which they mostly reside. Chimaera reproduce by laying eggs; these eggs are covered in another egg layer and dropped onto the ocean floor. Their diet consists of prey such as crabs, clams, and echinoderms. The Chimaera may also eat other fish if need be.
Preparation for the Dissection The Dogfish shark is about 70 inches long and you should notice along the side of the shark there is a light colored horizontal stripe called the lateral line. Made up of a tiny pore that lead to receptors that are very sensitive to the mechanical displacement of water and sudden changes of pressure. You will need tools for this including Latex gloves, yard stick (with centimeters), scalper knife, scissors, probe, and if you have a weak stomach you should wear facemask so the smell won’t be bad. External Anatomy Let’s start with the pectoral fins which are toward the front and side of the Dogfish Shark. The Dogfish has two dorsal fins, you have a anterior or first dorsal fin and a posterior or a second dorsal fin both have spines so look they looked closely and are available to locate them.
What problems will these animals have? ⦁ Squid: Most squid have very short life spans, also squid a prey for a wide varity of larger animals and their only defense is there speed and ink (sephia). ⦁ Oyster: Their only defense is there shells due to the fact that they don 't move. There considred a key species because their the pray for a wide majority of animals. What features observed will enhance its chances for survival?
This feat is rather amazing but the basilisk can only run for for about 10 to 20 meters before they slow down enough to sink (“Do the Lizard Walk”). So don’t think that these lizards are living on the surface of the water, they usually only run to escape from predators or to chase prey and they otherwise spend the majority of their time in the trees and rocks close to the water so that they can sprint away at a moment’s notice. However, if they’re escaping from a predator, after running they can swim half a hour underwater without coming up for air (“Do the Lizard
Most of the members are gray in color and have some greenish tint with white bellies. This color balance enables the sharks to perfectly blend with the ocean since a prey viewing from the bottom will not see it sneaking in for a meal. The cephalofoil laterally project outwards thus giving the shark the hammerhead shape and, as a sensory organ, ability to easily notice electric field created by prey or threat from miles away. All the hammerhead sharks have excessively small mouths compared to other sharks located at the bottom of the cephalofoil with serrated triangular teeth. Hammerheads have wide-set eyes on the outer edges of the hammer adapted to give a wider and better visual range compared to other sharks.
The Great Hammerhead Shark There are many animals in the world that are endangered. One of them is the Great hammerhead shark . These sharks have flat, T-shaped heads that make them stand out from other sharks.They are long and flat in order to aid in the catching of prey. The eyes of these sharks are wide-set. We need to protect the great hammerhead shark because it is being poached and there are only 9 Species of hammerhead shark .
Millions of animals and birds cannot withstand such environmental changes; their populations become smaller and, eventually, disappear altogether from the face of the earth. Clumping of debris in the ocean is one of the biggest problems of the world, as it is far from people, no one takes it seriously. So, this research paper is dedicated to such problem as
They use their tentacles which have rings on the ends that are very sharp and create a tight grip using suction. After the prey is torn, they shred it into smaller pieces and eat it with a small beak that looks like a mouth. (Squid-World) “Octopuses creep toward its prey and then pounces, grabbing hold with its tentacles. Suckers on the tentacles hold the prey firmly while the octopus drags it to its mouth.”(Grid Club) Both creatures also use inject venom, that paralyzes the prey. Then, they release salivary enzymes.
Its flaxen eyes are usually the only part of the cuttlefish that pokes above the ocean bottom. At nightfall, the cuttlefish comes out to feed on small shrimp and fish. Two long fins haunch the sides of the striped pyjama squid body and the arms of its two tentacles have small suckers, each having a toothed horny rim. The lower side of its body is veiled in small glands that let out slime when The Striped Pyjama Squid is under attack by predators, quickly scarring off or terminating any predators from harming it by any means. It can also quickly change color to a dark purple-brown, making it easier to screen itself against corals and rocks near the bottom of the
SEA OTTERS The sea otter is a marine mammal that lives in the northern and eastern coasts of the North Pacific Ocean. They are the heaviest members of the weasel family but are some of the smallest marine mammals. The sea otter has no blubber and the main way to keep warm is its thick coat of fur which is not like most other marine mammals. Did you know the sea otter has 150,000 strands of hair per square centimetre, because of this the Sea otters have the thickest fur of any mammal. In the Maritime Fur Trade, which would eventually kill approximately one million sea otters, began in the 18th century when hunters and traders began to arrive from all over the world for otter pelts, which were one of the world 's most valuable types of fur.
Although the worms extract the nutrients from the whale bones, scientists did not know how, due to their lack of “body parts for physically drilling into the hard material” and absence of a mouth and gut (Ennis). Instead, it turns out, the worms have special root-like structures that attaches to the bones and dispenses an acid that dissolves the whale bones and extracts the nutrients. Although, the zombie worm is not the only interesting deep sea creacher. The deep sea jellyfish for example, are just as fascinating as the zombie worms. They live about 820 meters below the surface of the ocean (Jonssen).
Some of the Cephalopods have the ability to shine in the dark. This is all caused by a pair of light organs ,which are located inside the mantle sac on the underside of the Cephalopod. It contains a sac full of luminous bacteria and a lens which consists of many reflecting plates needed to control the brightness of the bacteria. Using this organ ,squid can manipulate the light coming downward and use it to mask its own silhouette , protecting itself from
In conclusion, manatees are becoming extinct because people are populating the water that manatees live in which is causing them to die. Manatees are being struck by boats when people drive through shallow water too fast, because they cannot see them in time to move out of the way. Manatees are also becoming extinct because they are eating toxic algae that is produced from the
Most of the people enjoy the animal at first, but they are not prepared for the future responsibilities that follow. They end up in your backyard, your local canals, and even in your neighborhood parks. We must find a way to stop this terrible issue. Pythons are a danger to Florida 's ecosystem.