Abandoned
Even though they could not see the mother or father anywhere, it was important for them to act with caution. There are animals out there who will leave their babies when they come into contact with humans. Meanwhile, there are also parents who would get vicious when they defend their young. In this case, it looked like a case of abandonment.
A Difficult Situation
When the team was able to look at the pups, they could not believe that the animals survived for that long. After all, they saw that the sewer was full of garbage and dirt. Sunlight could not get all the way down there either, so this meant that it was also freezing cold. The things that they saw only made them feel more motivated to rescue the babies.