Blubber Flapper

The Blubber Flapper replaced its ancestor the leaping flapper. Due to its ancestor's poor adaptations to polar life and un-aerodynamic body the leaping snapper had a very high death rate and almost became extinct. However the few that did survive took their adaptions to the extreme to survive. Being cold-blooded and without any protection from the elements, natural selection and random mutation favored those who were born more endothermic. Over the generations it developed a primitive version of warm-bloodedness.

However with this heat it lost a lot out of its huge wings. A freak mutation of one individual changed it all when it grew short stubby wings all over its body since the "wings" were originally scales of the turtsnappers. These tiny flapping wings could not keep in the heat very well, however it was not until the adaption of blubber on each of these tiny wings did it allow for its body heat to be reliably retained. And its keratin outside acted like natural armor against predators. Thus ending its days as a "jumper".

In addition to its major physical adaptions it also had reproductive changes. Rather than laying frog-like eggs in pools, which cold freeze over, they now have their eggs hatch inside the female. The eggs are laid in internal pools which feed nutrients to the tadpoles when they hatch. Once out of their tadpole stage they are "birthed". Its is important since they need their blubber-wings to keep warm.

Two of its eyes have also become more advanced to help it see better since it had very poor vision before with its tiny eyes.