Babies begin to develop recognition of familiar faces, including those of their siblings, starting at around 6 months of age. At this stage, they start to develop the ability to distinguish between familiar and unfamiliar faces and can begin to differentiate between their primary caregivers and other people. As they continue to grow and develop, their ability to recognize and remember faces will become more advanced.
By 9-12 months of age, most babies have a good understanding of who their family members are, including their siblings. They will likely start to show signs of recognition, such as smiling, reaching out, or making sounds, when they see their siblings. At this age, they also begin to understand basic social interactions and may start to engage in simple play with their siblings.
It's important to note that every baby is different and develops at their own pace, so the timeline for recognizing siblings can vary. Some babies may start to recognize their siblings earlier, while others may take a little longer. The best way to encourage recognition and bonding between siblings is to spend time together, engage in play and interactive activities, and provide a supportive and nurturing environment.
