Pseudis
Frogs in Pseudis find mates and lay eggs the same way most frogs do. However, their tadpoles are different.  The tadpoles start live normal, but they continue growing until they are very, very large, sometimes as large as  in length in P. paradoxa and P. platensis. They are the longest tadpoles in the world.  They are also very large compared to the adult frogs, which are  from nose to rear end. Scientists have not seen enough tadpoles from other species to say for sure, they have seen enough to know they are also very large. Their adult frogs are also somewhat smaller with nose-to-rear-end lengths of . However, P. cardosoi and P. minuta (which could be in the proposed genus Podonectes, see Phylogenetic relationships) have more normal tadpoles that probably do not grow longer than  . This is still large compared to the adults of these two species.  This means that the animal is the largest it will ever be in its life when it is an older tadpole.  It is smaller when it becomes a frog. In most of these frogs, tadpoles from different places can be different sizes. Tadpoles that grow in large, temporary bodies of waters with plenty of food and few animals that want to eat them grow larger than those in smaller bodies of water with less food, or year-round bodies of waters that may have fish or other animals that eat tadpoles in them. The very largest tadpoles usually have well-developed organs, including reproductive organs that are almost ready to be used. This means that the frogs are ready to mate very soon after becoming frogs.  This is different from most genuses of frogs: In most species, the tadpoles become small frogs and then grow larger before they can mate and lay eggs.