Is ? The dolphin is one of the more famous animals, most of which live in the ocean. Vertebrate refers to a category of animals, as opposed to invertebrates, which refer to animals with vertebrae inside their bodies. According to the category of dolphins, they belong to the phylum Chordata, which also belongs to vertebrates. They also conform to the basic characteristics of vertebrates. They have vertebrae inside their bodies, which support their bodies. The dolphin is a superior animal compared to the invertebrate.
In addition, vertebrates can be classified more specifically. Dolphins belong to the class Mammalia in the phylum Chordata, that is, mammals. Among vertebrates, mammals are the most advanced animals, and the various structures and regulatory mechanisms of the body are more complex and advanced. For example, from the point of view of thermoregulation mechanism, dolphins have a very perfect regulation mechanism, so their body temperature is constant, and they are warm-blooded animals.
? Cetaceans are a relatively large category, which includes many animals. Animals in the order Cetacea can be regarded as cetaceans. Among the cetaceans, there are two pressure orders, one is the suborder of odontoceti and the other is the suborder of baleen Ceti. Dolphins also belong to one of the cetaceans, specifically, they belong to the dolphin family in the suborder Odontoceti. All animals in the dolphin family are dolphins, and these dolphins belong to cetaceans, which conform to the basic characteristics of cetaceans. However, the dolphin is different from other cetaceans. In terms of size, the dolphin is one of the smaller cetaceans, and it is also one of the cuter ones.
