Bufonidae
True toads do not have any tooth. Their skin looks like warts. They have a pair of parotoid glands on the back of their heads. These glands has alkaloid poison. They get this type of poison from stress. They have also other toxins such as Bufotoxin. Male toads has a Bidder's organ. The organ will become an active ovary if conditions are right. They will then become a female.