Litter
In the beginning, the firemen did not know how many pups there were inside the grate. The only way to know was to get them all out. It was a good thing it was not deep, so it was not hard for them to do this.

Litter
Huddle
The pups were probably very confused. They were in a cold, dark sewer one moment, and then a brighter environment full of people the next. The tiny pups huddled together to conserve their warmth. It was starting to look like they had been in the sewer for a few days.

Huddle