Look at the size of this thing. This is a bufo marinus toad, or cane toad. This toad can kill pets who ingest the milky toxin it secretes when threatened. This toad is just where you don;t want it to be - in the pet's food area providing far too easy access to a pet.
These toads can
reach 2 pounds and live up to 15 years in captivity.
Read the article Bufo Toads in South Florida, a threat to your pet, by Dr. Mary C. Fondren. This article provides some historical background on the introduction of this non-native invasive species as well.