abandoned dog has two "babies"

A chihuahua was found outside an animal shelter over the July 4th weekend.  She was in a box nursing two babies.  A police officer found the three animals and took them so they could have food and water.  What he discovered was a dog and two kittens.  The dog is taking good care of her two "babies."  They've been taken to an animal rescue group which promises not to separate them until the kittens are weaned.  good mom