Why Sea Cucumbers Are Echinoderm Animals

The venomous spine is located near the dorsal fin. The poison released from the fin may be mildly poisonous to humans, but it can inflict a painful wound nonetheless. This venomous spine keeps the Chimaera protected from any predator that may come by. They also have another dorsal fin, but the second fin does not have a venomous spine near it. This particular spine can grow to 1.5 m. The head on a Chimaera is covered by a sensory canal which helps it be aware of both prey and predator.

They are found at a depth of 1500 meters inhabiting the Pacific Ocean. The frilled sharks can grow up to a size of 5 feet, and have sharp teeth remarkably in 25 different rows! This strange large mouth is entirely different from that of the other members of a shark family. Frilled sharks have the ability to bend their body when about to catch their prey. Many researchers insist that look like a snake at the time of predation.

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.

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.

Octopuses and squids share many features but lead different lives. As marine species, both octopuses and squids have a suitable body for maintaining life at sea. Octopuses range in size from one centimeter to five meters, as squids are about sixty centimeters (giant squids can be thirteen meters). From the lack of bones, octopuses and squids are mostly soft.

The sea otter has made many adaptations to its water environment. Its nostrils and small ears can close. The back feet, make the sea otter swim fast, because they are long, broad, flat, and webbed. The tail is short, thick, slightly flattened, and muscular and the front paws are short with retractable claws, with tough pads on its palms to get a good grip on prey. The sea otter propels itself underwater by moving the rear end of its body, including its tail and back feet, up and down.

Well, most of this secret lays in their feet. They have long toes with fringes of skin in between them that unfurl in water, this creates a air bubble that prevents them from sinking. However, they have to pull their feet up before the air bubble sinks and gravity pulls them down. Strong bones was usually a good thing, but these lizards have evolved hollow bones that prevent them from sinking. Some of the secret also lies within their tail, while running they hold their tail in the air to counterbalance their upright posture and to reduce drag.

⦁ 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? ⦁ Squid: Some can change color, some use bioluminescence to create light, and some shoot ink to cloud the water and lose predators, all these adaptaions will enhance their chance of survivale.

Additional actions may be taken depending on how weak or anemic your dog may be. This may consist of IV fluids and additional supplements. ("Whipworms in Dogs -Diagnosis, Treatment, Recovery, n.d.) How can I prevent whipworms?

They move to bays and lagoons when they reach the age of 5. Rarely ever will you be able to observe a Green Sea Turtle in the middle of the ocean, just because they don't travel that far. They live on 80 countries all over the world. They live in all tropical

A vulnerable species means if their their birth and deaths rates decrease, they will become endangered. Humans hunt Makos for sports and food(Gray, 2014). For example, they make shark fin soup with Mako sharks. To protect the Mako Shark species, they are protected by U.S. waters(Beardsley, 2015). Mako sharks are fascinating animals.

People don 't understand that this doesn 't just affect whales, it also effect people to because the belugas play a very important role in our ecosystem. If we don 't stop killing or hurting them right now later down the road we will pay for it. Later on in life if you start to see overwhelming amount of bad fish for an ecosystem and they are destroying it because there are no predators to keep the fish population down. Beluga whale help keep the ocean 's ecosystem healthy by eating fish and reducing the amount of fish that are bad for an environment. Belugas also are good for the deep sea because when anything dies and falls to the abyss from the topside they go through different layers of the ocean.

What do the Chelonia mydas call home? The Chelonia mydas don 't just call one place home they live all over. They prefer the tropical and warmer oceans and sandy shores. Green sea turtles live in almost all the oceans in the world excluding the oceans that are located in the colder regions (ex Arctic Ocean).

The Snow Petrel have a wingspan of 1.5 feet and they have very thick plumage. Polar Skuas have a large menu that they will choose from, some of those items are fish, squid, carrion, and krill. They also find Adelie penguin eggs and chicks very appetizing. Albatross are a little picky on what they eat, they only like fish and squid. Polar Skuas usually live up to 11 years on the other hand an Albatross can live to about 50 years, but can live up to 80-85.

These vibrissae are as sensitive as human fingers and allow the manatee to feel its surroundings in a better manner. When feeding the manatee uses its split upper lip to help gather and manipulate food allowing them to easily grasp their food. The manatee only has hind molars that move to the front row slowly as teeth fall out , these molars are efficient for grinding down plants and other forms of vegetation that the manatee feeds on. While the manatee mainly lives in warmer waters they have a thick layer of fat covering their bodies in order to insulate themselves from the cold.