There are a number of factors that contribute to what makes babies cute, and many of them are related to evolutionary biology and our instincts as humans to care for and protect infants.

One of the key factors is the proportion of the baby’s facial features. Babies typically have large eyes, chubby cheeks, a small nose and mouth, and a round face. These features trigger a nurturing response in adults, as they are reminiscent of the faces of human infants in their earliest stages of development.

Additionally, babies have soft skin, which is another physical characteristic that humans find appealing. This may be because soft skin is often associated with youth and good health, which are desirable qualities in a mate and potential parent.

Babies also have a number of behaviors that are endearing to adults, such as cooing, smiling, and giggling. These behaviors may be linked to our evolutionary need to protect and care for infants, as they signal that the baby is happy and content.

Finally, cultural factors also play a role in what we find cute in babies. For example, certain clothing styles or accessories, such as bows or hats, may be seen as cute in some cultures but not in others.

Overall, the factors that contribute to what makes babies cute are complex and multi-faceted, but are rooted in our evolutionary instincts to care for and protect infants.