The baby monkey is crying loudly because it wants to nurse from its mother. 🐒🍼 Baby monkeys depend heavily on their mothers for milk, comfort, warmth, and protection. When the mother refuses to nurse, moves away, or tries to wean the baby, the baby may become frustrated and cry, scream, cling to her, or repeatedly reach toward her. This behavior is a natural way for the baby to communicate that it is hungry, uncomfortable, or seeking reassurance.