Frogs and Toads
Frogs and toads are similar in that they are both groups of tailless amphibians. Frogs tend to be slimmer and longer limbed than toads, and their skin is moister and smoother. Toads’ skin feels drier and rougher because of the presence of warts. Their tongues are rounded at each end and the males have a swollen nuptail pad on each first finger which darkens during the breeding season. On the whole, toads do well in captivity, being intelligent and making good pets, some coming to hand for food.
As with newts and salamanders, the frogs and toads, or Anura as they are scientifically classified, have some members which are entirely aquatic, and though most will thrive in a terrarium, all should have access to some damp or wet area.
There are several families of frog and toad coming from all over the world’s temperate and tropical zones 
and they vary enormously in attractiveness of appearance as well as in their requirements in captivity. Tree-frogs are perhaps the most discrete group among this order, and any are quite amenable to captivity so long as opportunity is given for them to climb. They have been a very successful group in the wild, and are found in Australasia, Europe, Africa and the Americas. The ranids, among which are found the true frogs, and the bufonids, or true toads, are also large and extremely successful families, being found all over the world. Another group to be found among the ranids are the poison arrow frogs which are very colorful and otherwise attractive specimens whose skin contains a potentially dangerous poison. Other major families are not well represented by species available for captivity.