What are the seafloor animals and what are its characteristics

Underwater animals include: sharks, whales.

Dolphins, jellyfish, manatees, etc., their characteristics are as follows:

1. Sharks. Sharks have hard, muscular bodies that are spindle-shaped to varying degrees. The muzzle and nose parts vary depending on the species, from pointed to large and rounded. The tail (caudal fin) that rises vertically upwards is roughly crescent-shaped, and the upper part of the caudal fin is much larger than the lower part in most species.

2. Whales. Whales are large, some with large bodies, and the largest can reach a length of up to 30 meters. The whale is shaped like a fish and is in the shape of a shuttle.

The head is large, the eyes are small, and the ear shells are completely degenerated. The neck is not noticeable. The forelimbs are fin-shaped, and the hindlimbs are completely vestigial; Most species have fins on their dorsal backs; The tail is horizontally finned and is the main locomotor organ.

3. Dolphins. The dolphin is meters long and weighs 23,225 kilograms. Dolphins generally have a pointed mouth and upper and lower jaws.

Each has about 100 thin teeth, mainly small fish and squid.

Shrimp and crabs are fed.

4. Jellyfish. Jellyfish do not have a spine, but they have a very large body, relying mainly on the buoyancy of the water to support their huge body. The body shape is like a transparent umbrella, and the diameter of the umbrella body can be large and small, and the diameter of the umbrella body of the large jellyfish can reach 2 meters.

5. Manatee. Due to their adaptation to life in the water, manatees specialize in cones on their forelimbs, but they still have vestigial hooves at the ends, which are closer to ungulates. The hind limbs gradually degenerate and disappear, and the tail is a round broadwhale.

There are many species of benthic fauna with different characteristics. Here are some common seafloor animals and their characteristics:

1.Sharks: Hard, muscular body, sharp teeth and strong bite in the muzzle and nose, spindle-shaped body, tail with vertical upward tail fin, blue or black upper part of most species, white lower part.

2.Whales: Huge, fusiform like a fish, with a large head, small eyes, completely vestigial ear shells, fin-like forelimbs, completely vestigial hind limbs, fins on the back, and a horizontal fin-shaped tail, which is the main locomotor organ.

3.Dolphins: Measuring meters in length and weighing 23 to 225 kilograms, with a pointed mouth and about 100 thin teeth in the upper and lower jaws, they feed on small fish, squid, shrimp and crabs.

4.Jellyfish: There is no spine, but the body is very large, mainly relying on the buoyancy of the water to support its huge body, the body shape is like a transparent umbrella, the diameter of the umbrella body is large and small, the diameter of the umbrella body of the large jellyfish can reach 2 meters.

5.Manatees: adapted to life in the water, their forelimbs are specialized as cones, but they still have vestigial hooves at the ends, which are closer to ungulates. The hind limbs gradually degenerate and disappear, and the tail is a round broadwhale.

In conclusion, the characteristics of benthic animals are very different, and each animal has its own unique way of adapting to the marine environment and characteristics.

The characteristics of the benthic fauna are as follows:

1. Deep-sea animals' ability to resist pressure.

All very high. 2. Some animals obtain oxygen by ventilating at the surface of the water, and some survive by filtering oxygen in the water by their gills.

3. Some emit ultrasound, such as cetaceans. Some emit infrasound waves.

It is often used to call out to a companion or courtship.

4. Predation. Animals usually chase their prey by surprise or with speed, while predators that feed on zooplankton move slowly.

5. Deep-water fish, they have their own luminous organs, and they swim like twinkling stars.

The body color of deep-sea animals is generally gray to black, and occasionally bright red. Many of them have poorly developed lateral muscles and inadequate ossification. The body size is huge, the appendages are growing, the protrusions are developed, and so on.

1. Sharks, who live in the ocean, are fish in the ocean. Sharks have been on Earth since 300 million years before the appearance of dinosaurs, and they have been around for more than 500 million years, and they have barely changed in nearly 100 million years. Sharks, in ancient times, were called sharks and sharks.

The sand fish is a behemoth in the ocean, so it is known as the "wolf of the sea".

2. Sea turtles. It belongs to the turtle order, the turtle family, and the turtle genus. It is widely distributed in the Atlantic Ocean.

Pacific and Indian Oceans. Chinese sea turtles stretch from Shandong in the north to the Beibu Gulf in the south.

It is distributed offshore. It can be more than 1 meter long and has a lifespan of about 150 years. There is a pair of forehead scales on the top of the head. The limbs are like oars, the forelimbs are longer than the hind limbs, and each has a claw on the inside. The head, neck, and limbs cannot be retracted into the nail.

3. Jellyfish is an important plankton in the aquatic environment and belongs to the class of spinophila bowl. Jellyfish are a very beautiful aquatic animal. Its body is shaped like a transparent umbrella, and the diameter of the umbrella body can be large and small, and the diameter of the umbrella body of the large jellyfish can reach 2 meters.

The edge of the umbrella has a number of whisker-like tentacles, some of which can be up to 20-30 meters long.

The characteristics of <> activities are as follows:

1. Direction positioning by emitting ultrasonic waves, such as cetaceans;

2. Crawling by muscle stretching, such as sea cucumber;

3. Use the reverse thrust of water to quickly retreat, such as octopus and squid;

4. Deep-sea fish that have their own light-emitting organs and will flicker when swimming;

5. Fish that can climb onto land, such as mudskippers adapted to amphibious life;

6. The fastest swordfish on the bottom of the sea, traveling at a high speed of 130 kilometers per hour;

7. A seahorse swimming upright;

8. Fish that move by adsorbing to the host, such as sucker fish.

Animals on the bottom of the sea are characterized by their ability to tolerate high water pressures, their bodies often produce some bioelectricity, and they can easily blend in with the background, making it difficult for people to figure out the tracks.

There are seahorses, tropical fish, and other animals in the ocean, and male seahorses have a pocket in their stomachs that can make small seas.

Horses live in it until birth.

The animals in the sea have their own activities, sea cucumbers crawl with dark muscles, and can only move forward 411 per hour, there is a fish with a body like a shuttle, which can travel thousands of kilometers per hour, and when shopping for other animals, it is faster than ordinary trains, and squid and octopuses can suddenly drain forward. For example, the reverse thrust of the water recedes rapidly, and some shellfish can make free long journeys under the steamer without moving on their own.

Sea cucumbers crawl on stretching and contracting, and can only advance 4 meters per hour.

Sea horse. There is a pouch in the belly. It is from there that its children are born.

There are fish on the bottom of the sea, and they breathe with their gills.

Given that it can swim up to 130 kilometers per hour, it is recommended that the upper grid can pierce a very thick bottom of the boat.

There are dolphins in the ocean, and sharks are afraid of dolphins.

, Xun 1 extinguished a negotiation and a horse. 灬le piece of feudal domain.

The edge of the naan sand should be fired.

Small red fish, which can hide in the corals and not be detected by sharks.

DolphinsDolphins do not dive as long and deep as other cetaceans. It swims fast and has juggling features.

Dolphin swimming, a unique way of swimming for dolphins in which the whole body jumps out of the water at a small angle and enters the water at a small angle, is one of the ways to distinguish dolphins from other cetaceans (porpoises and other cetaceans generally do not swim in this way).

Dolphins swim fast, usually at a maximum speed of about 30-40 km per hour, and some species of dolphins can reach speeds of more than 55 km per hour and can maintain a long time, making them the champion of long-distance swimming in the ocean.

I also know about the white sturgeon, but it's not white, it's dark gray. He has a bad temper and a fierce temperament, and eats other fish in the Yangtze River as his staple food, and sometimes makes some small shrimp and crabs for snacks.

Sea snakes, seahorses, sharks, whales, seals, manatees, walruses, shrimp, and more. Sea snakes, seahorses, sharks, whales, seals, manatees, walruses, shrimp, and more. Sea snakes, seahorses, sharks, whales, seals, manatees, walruses, shrimp, and more.

Dolphins swim quickly and nimblely.

Dolphins can swim at very fast speed on the bottom of the sea.

There is a fish with a body like a shuttle, which can travel tens of kilometers per hour, and can attack other animals faster than ordinary trains.

What is one of the kinds of wild sea tours like.

Actually, I don't know, I'm just thinking about some gold coins.

Clownfish will hide in mountain lakes.

The crab has eight legs and walks sideways.

Fish, shellfish, whatever, whatever.