A South Florida city is being plagued by thousands of poisonous toads.

Experts say the amphibians are bufo toads, also known as cane toads. Residents in the infested Palm Beach Gardens neighborhood worry toxins secreted by the toads will harm their pets and children.

News stations broadcast images of the small toads clogging pool filters, hopping en masse across driveways and sidewalks, and lurking in landscaped lawns.

More than 500 non-native, invasive fish and wildlife species live and thrive in Florida, says the Florida Fish and Wildlife Conservation Commission. From iguanas to Burmese pythons to lion fish and giant African snails, these exotic creatures and many plants threaten the state's native species, causing economic damage and posing a threat to human health and safety. Learn more about these wild animals. (Doreen Christensen) (Doreen Christensen)

Resident Jennifer Quasha told WPBF her family first noticed the toads Friday. She said hundreds of them were in her swimming pool.

Mark Holladay of the pest removal service Toad Busters told WPTV that recent rains coupled with warm temperatures sent the amphibians into a breeding cycle.

Holladay said even more toads are likely to spread throughout South Florida in the coming weeks.