Bufonidae

Bufonidae is a family of the "true toads". The family has 35 genus. The Bufonidae toads are found almost everywhere and are well known. True toads can be found on every continent except Australia and Antarctica. They can be found in rain forest. They lay their eggs in strings. They will hatch and become tadpoles. However, the genus "Nectophrynoides", their young will not develop from a tadpole stage.
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.
Taxonomy.
Bufonidae has about 500 species among 37 genus.