The term cetaceans is used to refer to a group of animals, made up of various species of placental mammals that permanently inhabit aquatic environments. They are mammals with spindle-shaped characteristics, fully adapted to fluvial environments, they do not have hind limbs and the forelimbs are fin-shaped. The body of the cetaceans ends in a single fin. Their breathing is pulmonary and they are warm-blooded.
Animals such as sperm whales, dolphins, orca whales, etc. They are part of the cetacean family.
From an evolutionary perspective and according to research, it is believed that cetaceans were initially terrestrial animals, but over time they began to acclimatize to the aquatic environment. As for their habitat, cetaceans can be found on coasts, seas and rivers.
These aquatic animals have an underdeveloped or poor sense of smell, their eyes can easily adapt to observe in and out of the water. What they do have very well evolved is the auditory part, so much so that they are able to hear the slightest sound no matter how small it is.
Cetaceans are generally identified by their size, with the largest being whales and the smallest being dolphins.
All these mammals are predators and are located at the top of the food chain; They do not have many natural enemies, with the exception of the human being, who is the most dangerous for them.
Socially cetaceans, form group many individuals, these groups tend to settle for reasons of defense or feed, or for reproductive purposes.
When they are on the surface, cetaceans like to perform various jumps and acrobatics, which in reality, the reason for this behavior is still unknown.
Unfortunately, several animals of this species are in danger of extinction, as is the case with orca whales and other species that are victims of unscrupulous hunters who only want to profit from their catches, ignoring the serious damage to marine species like these.
