Imeväisikäiset

Imäväisikäiset refers to the youngest stage of a mammal's life, encompassing the period from birth until they are weaned and can independently consume solid food. This developmental stage is characterized by a high degree of dependency on the mother for nourishment, warmth, and protection. During this time, the young undergo rapid growth and development, with their organ systems maturing and their basic motor skills becoming established.

Key physiological and behavioral traits define imäväisikäiset. They are typically born with underdeveloped senses, such as sight and hearing, which gradually improve over the first few weeks. Their diet consists solely of milk produced by the mother, a nutrient-rich substance tailored to their specific needs. Social bonding with the mother and littermates, if any, is crucial for learning essential survival behaviors and establishing social hierarchies. This period is also marked by vulnerability to environmental factors, diseases, and predation, making maternal care paramount. The duration of the imeväisikäinen stage varies significantly across species, influenced by factors such as litter size, maternal metabolism, and the complexity of their diet once weaned.