Posted by: Kirsten Pisto, Communications Baby Solomon Island leaf frogs. Photo by Alyssa Borek/Woodland Park Zoo. Solomon Island leaf frogs, Ceratobatrachus guentheri , also known as triangle frogs, are a very special type of amphibian because they go through their tadpole stage inside the egg, hatching as completely formed froglets. The juvenile frogs emerge from their eggs as fully developed frogs in a process called direct development. Instead of spending their first days as a tadpole, or polliwog, these frogs are hatched ready to leap! The tiny frogs grow very quickly, starting at only an eighth of an inch when they emerge. They eat very small insects until they are large enough to transition to an adult diet of arthropods and larger insects, and even smaller reptiles and amphibians. The little froglets practice ambushing tiny insects, a behavior they will use later to pounce on any prey that happens to wander through their territory. It’s amazing to se...