Nothing more then procreation in action, preservation of specie...not NEW one.
Frogs make more frogs...and so on.

Now, what about the polonium halos with a lifespan of nanoseconds FROZEN in rock??
No way to freeze something lasting a nano second UNLESS....hmmm...thats right...you create the granite instantly!!! Only one "theory" for that...and its not evolution.

Before you get too involved in frogs there are many other scientific questions that need answers!!