Here are some short descriptions of different kinds of fostering:
Nursing mothers with offspring: Puppies and kittens will need to stay with their mother until they are 8 weeks old and will need to be brought to the shelter for vaccinations when they are about 6 weeks old.
Bottle baby kittens and puppies: These animals will need to be monitored and fed frequently.
Underage kittens and puppies: These animals are too young to be adopted and may need a little help with eating.
Socialization: These animals may need to be in a hime environment for evaluation or extra contact with people.
Injured or sick animals: These animals could be recovering from an injury or need to be isolated from the the shelter due to illness.