Dolphins are aquatic mammals, so their reproductive methods have certain similarities with other mammals. Specifically, they reproduce according to the following methods:
1. Reproductive age: Dolphins need to reach the appropriate age before they can reproduce. Generally speaking, although female dolphins ovulate when they are a few years old, they are not able to reproduce at this time, but after a few years they can really have the ability to reproduce. Male dolphins have the ability to mate after they are mature.
2. Mating: Female and male dolphins will mate in the right breeding season. Male dolphins usually leave immediately after mating.
3. Childbirth: After that, the female dolphin gives birth to a calf. It will take a long time in the middle, maybe about 11 months, which is similar to human beings. However, dolphins are born in a different way from humans, because dolphins come out first with their tails, while humans come out first with their heads. The whole process of childbirth will take about three hours.
4. Lactation: The weight of a newborn baby dolphin is generally about 10 kg, accounting for about 5% of the weight of a female dolphin. As mammals, dolphins also need to suckle. Newborn dolphins usually stay with their mothers all the time. Until they are about three years old, they learn to hunt and other survival skills, and then they will leave their mothers. In the process of growing up, its mother and other whales in the group will always protect the young whales from the invasion of killer whales, sharks and other creatures.
When dolphins reach the age of sexual maturity and have the ability to breed, they will choose to breed in the appropriate breeding season. Generally speaking, female dolphins mate with male dolphins in summer. Because the climate of the northern and southern hemispheres is different, so the specific month is not necessarily.
