[Solution]Discuss the development of stranger anxiety and separation anxiety.

Stranger Anxiety is a fear response that occurs when an infant or child encounters a stranger for the first time. It usually begins to develop around 8 months old but may start as early as 4 months old. During this period, infants will become increasingly aware and alert when faced with unfamiliar persons or circumstances. This is believed to be an evolutionary trait designed to protect them from harm due to their lack of experience in the world outside the home environment. The signs of Stranger Anxiety include clinging behavior, crying, avoidance behaviors such as turning away from strangers or hiding behind a parent/caregiver, and withdrawal behavior like freezing up or becoming stiff body language when faced with new people in unfamiliar settings.

Separation Anxiety takes form at slightly older ages than Stranger Anxiety—generally around 10-12 months old—and it lasts until approximately age 2-3 years old before gradually withering away over time (although some cases may persist into adulthood). Separation anxiety is characterized by distress responses exhibited when separated from the primary attachment figure—typically mom or dad—such as crying excessively upon leaving figures parents sight; fear regarding being alone; strong reluctance towards letting anyone else take care of them; difficulty falling asleep without parents present; or nightmares about being abandoned/separated from caregivers during sleep hours. Interestingly enough, separation anxiety often becomes more moderate if left unattended for longer periods compared to shorter ones during its peak period because toddlers tend learn to cope better after repeated exposure to similar situations overtime (e.g., daycare).

In conclusion both Stranger Anxiety and Separation Anxiety are important aspects of childhood development that need attention from parents/caregivers so that proper measures can be taken should any issues arise related thereto (e.g., excessive levels of either kind). To sum it up then: Stranger Anxiety generally appears earlier than Separation Anxiety does; however both respond best when addressed through consistent support/attention given by familiar faces in comforting environments fitted for children’s stages of development accordingly!