Whale is a mammal, which is the largest species of animal that lives on the planet, and belongs to the rank of whales, which also includes dolphins, and sea pigs, and it is necessary to distinguish between whales and dolphins that bear the name of a whale like the killer whale, and the flying whale, it is Taxonomically, it is considered a dolphin, contrary to its name. Whales are found in all seas and oceans of the world with the exception of the Caspian Sea and the Aral Sea. They descend from wild mammals believed to have moved into the water nearly 50 million years ago, and have adapted to live in water. Their bodies are flowing, and they have caudal and dorsal fins.
The whales breathe by the lungs, and the air enters them through the jet hole that is located on top of the head. The whales have a unique respiratory system that allows them to stay underwater for long periods without taking oxygen, such as an amber whale, which can stay under water for up to two hours, Whales are characterized by most of the distinctive characteristics of mammals: they are of hot blood, reproduce by birth, their infants are breastfed, and they have hair near the mouth and the aperture.
Types of whales are divided into two main parts, the first section is baleen whales, which are the largest whales, and its jaw contains paleine plates consisting of strong creatine that filter the plankton present in the water, and the second section is toothed whales and owns these Whales are teeth and feed on fish and squid, and are characterized by the ability to feel the surrounding environment by locating the echo.
- Ballet whales. Here we mention some types of ballet whales:
- Fin Whale: Fin Whale is the second largest whale in the world. Its mass exceeds the mass of dinosaurs, and it is fast and has unique fins.
- Humpback Whale: Humpback Whale is medium in size, ranges from 12.19 to 15.24 meters, and weighs from 20 to 30 tons.
- Gray whale: The gray whales range in length from 12.2 to 15.2 meters, and are spotted gray.
- Blue whales :: Blue whales are called blue whales. When they are submerged under water, they appear blue, which is the largest living creature on Earth, as they may exceed 30.48 meters.
- Common Minke Whale (English: Common Minke Whale): Scientifically known as (Balaenoptera acutorostrata), common minke whales are divided into three subspecies, namely the minke whale in the North Atlantic, the minke whale in the North Pacific, and the dwarf whale from you.
- Antarctic Minke Whale: Scientifically known as (Balaenoptera bonaerensis), this whale differs from the common minke whale in that its thoracic fins are gray instead of gray-dotted white, and was recognized as a separate species from the common minke whale in the 1990s. the past.
- Bowhead Whale: Scientifically known as (Balaena mysticetus), this whale lives in the polar regions; therefore the layer of fat covering its body is thick to protect it from the cold, and the length ranges between 45-60 feet, and can reach its weight To 100 tons.
- North Atlantic Right Whale: Scientifically known as (Eubalaena glacialis), it is characterized by the presence of rough skin tissue on its head, and reaches a length of 60 feet, and weighs 80 tons.
- North Pacific Right Whale: It is scientifically known as (Eubalaena japonica). This type of whale was recognized as a separate type from the right North Atlantic whale in the year 2000 AD, and it is one of the whales that has witnessed a sharp decrease in its numbers due to poaching. Its numbers are currently estimated at 500 only.
- Southern Right Whale: Scientifically known as (Eubalaena australis), a huge whale up to 45-55 feet long, weighing up to 60 tons, and is known to swim during strong winds, by raising its tail above the water surface.
- Pygmy Right Whale: Scientifically known as (Caperea marginata), lives in the temperate waters of the Southern Hemisphere, particularly between two latitudes 30-55 degrees south, and it is the smallest type of Balinese whale, and the least known.
These whales are 20 feet long, and weigh approximately 5 tons.
2.Toothed whales: There are the following types of toothed whales:
- Amber Whale (English: Sperm Whales): Scientifically known as (Physeter macrocephalus), it is the largest species of toothed whale, characterized by its square-shaped head, and has from 20-26 teeth conical shape on each side of the lower jaw.
- Pygmy Sperm Whale is known scientifically as (Kogia breviceps), 10 feet long, and weighs (900) pounds.
- White whale (English: Beluga Whales): Scientifically known as Delphinapterus leucas, it is known as Canary of the Sea due to its distinctive sounds.