Natural breeding period of animals

The natural breeding period of different animals is quite different, and not all animals choose to breed in spring. For example, African lions on the African savannah can breed all year round, while typical migratory fish salmon breed from July to September every year.

For most herbivores, their breeding period is mostly concentrated between March and May every year, such as the herbivores on the African savannah, because March and May are the rainy season in the African savannah, and most herbivores get pregnant between11-65438+March, and mating in rainy season will give birth to cubs in the rainy season of the following year.

For the prairie, the rainy season means abundant food (vegetation), and the lush vegetation brought by the rainy season can also provide natural shelter for new herbivores, which can greatly improve the survival opportunities of cubs.

For herbivores who don't live in tropical areas, their breeding period is mostly concentrated in March-May. The advantage of this choice is that they can have enough food for a long time, which is beneficial to the development of their offspring in vivo and thus improves the survival rate of their cubs.

Reasons for the existence of breeding period in wild animals

Zoologists believe that the reason why wild animals have a breeding season is because with the change of seasons and climate, food and suitable environment do not exist all year round. For example, many warm-blooded animals choose to hibernate in winter, because it is too cold in winter, and they reduce their body fat consumption through sleep in order to survive.

Therefore, in the long-term evolution, animals have formed a fixed breeding period. Generally speaking, animals will only start breeding when the climate is most comfortable and food is sufficient.