poikasvaiheet
Poikasvaiheet refers to the developmental stages of young animals, particularly in the context of birds and some mammals. This term describes the period from hatching or birth until the young are independent and capable of surviving on their own. During these stages, the young are highly dependent on their parents for food, shelter, and protection.
The specific characteristics of poikasvaiheet vary greatly depending on the species. For altricial birds, such as
In mammals, poikasvaiheet encompasses infancy and juvenile stages. Newborn mammals are often nursed, requiring maternal care
The successful transition through poikasvaiheet is crucial for the survival of the species. Parental investment, including