-
Whales are indeed mammals. This is because whales give birth to live cubs and feed them with milk, traits that are hallmarks of mammals. In fact, whales are one of the largest species of mammals, they live in the ocean and are often considered predators at the top of the marine food chain.
In addition to lactating habits, whales have a number of unique traits that adapt to their aquatic environment. For example, whales move with their tails instead of their feet, which is known as the degeneration of hind limbs. They also have special ** to adapt to the icy environment of the deep finch pants sea.
In addition, whales' kidneys are powerful, allowing them to handle large amounts of salt water so that they don't always have to go back to the surface to breathe during long underwater activities.
From a scientific point of view, whales are an extremely interesting animal. Studying whales can help us better understand marine ecosystems and mammalian behavior. Whales also face many different threats, including fishing and marine pollution, so protecting them has become an important part of protecting the ocean and ecological balance.
-
Whales are mammals. Whales belong to the chordate phylum Vertebrates subphylum Mammals eumatria subclass marine mammals, about 80 species, living in oceans, rivers, except for a few living in fresh water, the others inhabit the ocean, note that whales do not belong to fish.
Whales generally refer to the order of cetaceans, mainly divided into two suborders, baleen whales and toothed whales, the species of baleen whales are few, but the size is huge, the smallest species known to be more than 6 meters long, the body shape of the toothed cetaceans is relatively different, the smallest species is only about 3 decimeters in length, and the largest is more than 20 meters.
The ancestors of whales are most likely terrestrial ungulates from North America, Europe and Asia, the mesoclawidae, whose members range from petite dogs to tall bears, but many animals evolved from small to large, so cetaceans may have evolved from small mesoclawes.
-
Whales are mammals.
Whales belong to the genus chordates, phylum vertebrates, subphylum mammals eumatrium, subclass marine mammals. All but a few species of whales live in freshwater, and all but a few inhabit the ocean. Although whales live in water, they are a class of mammals and live in a different environment than terrestrial mammals.
However, as a class of mammals, whales share some key characteristics with terrestrial mammals. For example, in terms of breathing patterns, they breathe with their lungs, and they cannot sink deep into the water to breathe, but can only breathe with their heads out of the water on a regular basis. Judging by their body temperature, their body temperature is constant at all times.
In terms of reproduction, they reproduce in a viviparous manner, and they also have lactation. These are the outstanding characteristics of whales as mammals.
The lifespan of the whale's body size
The whale is 33 meters long and weighs 239 tons. Because of the shape of the whale's back, and take this name, wandering in the world's oceans, most of our country's sea areas are distributed, the largest recorded female body length of 18 meters, weight of 30 tons, with its brother to cover the dust eye-catching appearance and intoxicating singing voice to leave a deep impression on people.
Larger creatures will actually live longer, and those with hibernation mechanisms will also live longer. The average lifespan of humans is about 65 to 70 years old, and whales have an even longer lifespan, although their average lifespan is about 45 years, but there are individual breeds that can easily break through 100 years without problems. One of the world's longest-lived whales lived for more than 200 years, which is unmatched by humans.
Sharks are not mammals. Sharks are a type of fish and belong to the class Ichthyidae; Sharks are more primitive, ovoviviparous, and can also keep their body temperature constant enough to attack quickly with enough strength. But it's not a mammal. >>>More
Mammals.
Like birds, mammals evolved from reptiles. Mammal. >>>More
First, the mode of reproduction is different1. Mammals. >>>More
Females also breastfeed their newborn calves. In the case of large baleen whales, a young whale needs to drink 400 litres of milk a day to ensure healthy growth.
Mammals are a homeothermic, vertebrate with hair on their bodies, most of which are viviparous and feed their offspring through mammary glands. >>>More