사진을 보면, 한 오랑우탄이 망고 아이스크림을 먹고 있네요.
If you look in the picture...
사진에는, In the picture...
작은 덩어리는 괜찮아. 요리하다(가) 보면 없어질 거야.
Small chunks are okay. While (you are) cooking, they will disappear
"-다(가) 보면", " -다(가) 보니"
In this case, 보다 is used as an aux verb.
It means that "in the process of doing the action or act the preceding word means", that is"while or during doing something"