Marine organisms Water covers more than 70% of the Earth's surface area, and 97% of the Earth's water is found within the open ocean. There are many diverse creatures living in the seas and oceans in a balanced ecosystem, different in their shapes, types and sizes, but complementing each other in a unique environment, the marine environment that many scientists have studied since ancient times and the creatures they inhabit. They are very small plankton, large and massive organisms, thousands of fish species, invertebrates of crustaceans and mollusks, as well as some mammals, and mammal species living in marine environments: Sea lion, seals, dolphins, and all kinds of whales.
Whales are large marine mammals that belong to the mammalian species, live in the seas and oceans, reproduce in them, and have smooth bodies that help them swim smoothly and quickly. They have a thick layer of fat beneath their skin; they protect them from cold water. Whales breathe in their lungs, they do not have gills; they always lock themselves under water, and have to rise to the surface and breathe continuously again, to keep the oxygen level in their bodies. Whales are the largest animals in the world, the largest of which is the blue whale, which is more than 30 meters long. These animals have a sharp, high-pitched voice that moves in the form of vibrations across the water. Whales use them to communicate with each other; sometimes they live in groups of different kinds, , Just like the work of a sonar, or radar.
Whales live for relatively long periods of time, ranging in age from 15 years to 60 years or more, like amber whales; whales have no enemies to prey on, except human beings; adult whales have no predatory organisms that threaten them, Whales are sometimes predisposed; because of dolphin attacks, weak and diseased whales may be vulnerable
Whales and their habitat Whales live in open ocean waters and their habitats vary from one species to another, but they are spread throughout the world. [4] They live in swarms and groups, each with a few whales, possibly as many as 1,000 whales, and The most famous types and places of life:
Blue whale: The blue whale lives in the cold seas, but migrates to the oceans near the equator in the mating season, to multiply with warm water, [5] the largest and largest whale species, and the largest on earth, as well as the greatest creatures that lived It has an average length of 25 m and weighs between 100-120 tons. Blue whales can drink about 200 liters of milk per day, gaining 91 kg of weight. Daily.
Humpback Whale: Usually lives near the frozen poles: the south and the north, but may migrate to any ocean in the world, [5] and is called the humpback whale; because it has a habit of curving its back to the top, when preparing to take a dip under the surface of the water, A strong bump in the back in front of his dorsal fin. These whales are about 13 meters long and weigh 25-35 tons, one of the most famous large-scale whales, because they are known to gather in flocks and large numbers near the beaches, drawing people's attention to them.
Amber whale: This type of whale lives in the world's largest oceans. [5] The males live in cold water around Antarctica, one of the largest species of whales, with a length of 15 m. The whale has acquired the name of a member In the head; produces an oily substance called amber.
The killer whale: The killer whale often lives in the waters near the poles, but travels at some time of the year to the warm seas, [5] one of the most dangerous marine organisms, a predatory organism; it was filled with sharp teeth and sits on top of the food chain in its environment Natural, sometimes deadly whales hunt in groups, so they are caught by sea wolves; they kill and prey on many other marine species, such as penguins, seals, and also large balloon whales.
Main whale species Whales are classified as two main species depending on the nature of their diet.
Whale whales are characterized by a lot of short teeth in their jaws, and feed on sea creatures from small fish and mollusks such as squid, whale species such as all dolphins and amber whale, which can dive more than 3000 meters below sea level; The animals that live there, including the giant squid, are very large.
Non-tooth whales: Balinese whales, called toothless, are also known as large, long pallets called the place of teeth, which help them collect their food from the ocean. They use it to kill very small living creatures, such as krill, crustaceans and plankton from ocean waters. Consume about 1500 kg of marine plankton at a time.
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