There are more than 200 saltwater animals. These have evolved to suit a marine environment. They can have fin-like appendages, hydrodynamic body shapes, and different methods of dealing with extreme temperature changes..
The ocean or salt water provides a habitat for a wide variety of animals, including mammals and cetaceans. Saltwater animals obtain oxygen through their gills. Some have adapted to survive in the deepest soils of the ocean, where the pressure can be unbearable for other organisms..
The aquatic environment does not allow the absorption of light; As a result, many marine mammals have poor eyesight and have evolved to use echolocation..
It is a crustacean similar to shrimp and lobsters; there are more than 6700 species. Most of these species are found in shallower waters, as they tend to inhabit coral reefs and coastal stones..
Crabs have thick armor that protects them from immediate danger; they also have two clamps that allow them to grab their prey.
There are more than 100 species that roam the waters of the southern hemisphere. There are two main types of angelfish: freshwater ones, which live in South America; and those who inhabit the oceans.
The saltwater angelfish can grow up to 12 inches and is known for the very colorful markings on its body. Their colors vary according to the species.
They are echinoderms like starfish. There are 1,250 species and most are shaped like a smooth cucumber.
They live on or near the ocean floor, and are sometimes partially buried there.
The harbor seal lives in cold waters around the world. Many species inhabit the waters of the northern hemisphere.
They are often found in coastal waters, where there is an abundance of food and fewer predators.
It is believed that there are more than 30 species of seals. These animals are closely related to sea lions and walruses.
Common dolphins are found in deep salty waters; some dolphin populations may be present in the same location, while others appear to have a migratory pattern.
Dolphins travel in groups of 10 to 50 members and frequently gather in flocks of 100 to 200 individuals. These animals are among the fastest in the sea, and they are very active and playful.
It is the largest animal on the planet, as it can weigh up to 200 tons. It is also the loudest animal, since it can sound louder than an airplane.
It has a low frequency that can be heard for hundreds of kilometers and is used to attract other blue whales..
It is a star-shaped animal found in all oceans. This one feeds on oysters and clams.
Starfish are known for their incredible ability to regenerate themselves and to change their gender as needed..
There are many species of sharks: from the largest and most aggressive to the smallest and calm.
For example, the zebra shark is very gentle and can live with other fish in an aquarium. The tiger shark eats everything (they have even found mattresses in their stomachs) and is one of the sharks that most attacks humans.
The hammerhead shark has a peculiar appearance with wide eyes, and the great white shark attacks thousands of people every year..
They are also known as killer whales. They feed on mammals (even other whales), seabirds, and fish using their teeth that reach 4 inches in length..
Despite popular belief, corals are animals and not plants; coral is an animal similar to anemone.
About 70,000 species of coral are believed to exist in the oceans, but they are abundant in the southern hemisphere.
Depending on their species, they can live from 3 months to 30 years. Corals play an important role in maintaining the diversity of the oceans.
This is because they provide excellent places for animals to hide from predators and breed..
It is an immobile mollusk found in saltwater environments around the world. It is one of the oldest animals on the planet. The most famous species are those that humans eat and those that produce pearls..
It is a small species of vertebrate found in the shallow waters of the world and on coral reefs..
It is usually around 10 centimeters tall, has a long snout and a long tail. The males are the ones that carry the eggs of the young. They are in danger of extinction.
They are found in all oceans except the Atlantic Ocean. These animals have four fins that allow them to walk on the ground and swim in water. They are very smart and playful.
It is a flatus fish that swims in hot salty waters and is believed to be related to sharks.
It is characterized by a stinger at the end of its tail, which it uses to pierce its prey before it escapes..
There are around 300 species of squid. They have a distinctive head and bilateral symmetry.
They have eight arms arranged in two pairs and two longer tentacles. They are very good swimmers.
They are elongated fish like snakes that can weigh from 30 grams to 25 kilograms. They live in shallow water and burrow in sand or rocks.
It is a fish known for its large size, terrifying appearance, and ferocious behavior; they have prominent fangs.
They are gray, green, white, or blue with silver sides. They kill their prey by tearing them apart with their teeth.
They are crustaceans characterized by having a semitransparent body, a tail that looks like a fan, and long antennae..
Many species are commercially important as food and vary in size, ranging from a few millimeters to more than 20 centimeters..
They are eight-armed cephalopods. They can measure from 5 centimeters to 5 meters.
They have an arm that can extend up to 30 feet. Their arms have cells with great suction power.
They are nocturnal saltwater crustaceans. Most are scavengers and look for dead animals, but they also eat live fish, algae, and small mollusks..
They have semi-rigid bodies and five pairs of legs, of which one or more pairs are pincers. Various species of lobsters are highly valuable to humans given their taste.
Also known as sea wasps or aguavivas, they are one of the oldest animals that exist. Its structure is composed of water, moving through the sea by impulses.
It can live at different levels of the sea, where it feeds on plankton and other microorganisms. As a curiosity, their life expectancy is quite random, since some jellyfish can live for a few hours while others can live for hundreds of years..
It is one of the strangest animals in the sea. With a cylindrical and gelatinous body, similar to that of an eel, they can be both fresh and salt water.
They have a circular mouth with horny teeth with which they can bite the meat of other species and suck the blood they give off..