Cetaceans are viviparous animals, and they belong to one of the mammals. Cetaceans reproduce in a similar way to other mammals, they give birth to their young through the nourishment** between the placenta and the mother, and are viviparous. The following is an explanation of the way cetaceans reproduce viviparously, about 550 words:
Cetaceans are one of the largest and most mysterious mammals in the ocean. Like other mammals, cetaceans are viviparous. Viviparous animals are the ones that conceive their young in the womb and complete the development of the embryo through the mother's nutrition**.
The reproductive process of cetaceans begins with mating. During the mating process of cetaceans, male and female whales will carry out mating behavior, and the male releases sperm into the female's reproductive tract, so that a fertilized egg is formed in the female's body. The fertilized egg then develops into an embryo in the female whale's uterus.
In the womb, the embryo exchanges oxygen and nutrients with the mother's blood through the placenta, and at the same time receives all the conditions necessary for protection and growth. The placenta is an important organ through which the mother provides the embryo with the oxygen and nutrients it needs and excretes waste products. This approach is similar to the placenta of other mammals, providing the fetus with all the nutrients and protection it needs.
The gestation cycle of cetaceans varies from species to species. Different species of cetaceans have different gestation times, and some cetaceans can be pregnant for more than a year. Once the pregnancy cycle is over, the mother whale will give birth to her cubs in relative safety. This usually happens in places such as warm waters or secluded bays.
Cetacean calves need the care and feeding of their mothers after birth. They usually live with their mothers for a period of time, relying on them for food and learning survival skills. At this stage, the mother whale will provide milk to her calves until the calves are able to obtain food independently and protect themselves.
Overall, cetaceans are viviparous animals that exchange nutrients and oxygen with their mother's blood through the placenta and depend on their mother's care and feeding after birth. This method of viviparous reproduction helps ensure that the pups receive adequate nutrition and protection during the initial growth stages, improving survival rates and helping them survive and grow in the marine environment.