The enterprise that did this process of terraformation, called Batrachotechnologies, began the project in order to study, breed, and preserve frog species that became endangered on Earth. They aimed not only to preserve frogs but also study their poison, the batrachotoxin, in order to make vaccines, medicines and antidotes against diseases and poisons respectively. They brought to the planet the following frog species: The genus Dendrobates commonly known as poison dart frogs, the Cane toad Rhinella marina, Giant leaf frog Phyllomedusa bicolor, the Common toad Bufo bufo, and the Colorado river toad Incilius alvarius.
The terraformation was done trough some decades, the process started when the first spacial stations settled in the solar system. The atmosphere of the planet was very similar to Earth's one, but it still needed to be changed, massive machines called 437H3-R were sent to produce gases such as oxygen in high quantities. Later on, more machines were sent, now the L1L1-P0D's, who bred phyto-plankton such as algae, an important component in order to stay with the oxygen levels alright. But L1L1-P0D's also bred Zoo-plankton needed to keep the numbers of algae in check. Then it was time for "greater" life get in, drones nicknamed 533D-3R launched spores of mosses, lichens, ferns and fungi in the continents, "pioneer species" who helped to break down nutrients from rocks, a necessary thing in order to get trees in the planet later on. But in the seas life seeded was more diverse, aquatic plants and animals were seeded to kind of establish the ecosystems of the oceans. Why "kind of"? Detritivores and primary consumers were added, but, for unknown reasons, no fish species was added, so, the ecosystems were kind of incomplete.
Then the last part of the seeding process started, once the pioneer species did their job the long term species came in. Trees, vines, grasses and bromeliads were seeded, and following them invertebrates too, such as pollinators and their predators. The terraformation thus proceeded, and humans and frogs could now settle in to start research and breeding respectively. However, the plans to peacefully research the poisons were suddenly changed, the enterprise was purchased by an ex-military who aimed to use the research to make bio-weapons and sell them to violent organizations suchs as mafias and terrorists, the GCL: Galactic Council of Life, discovered the plans of the new owner and proceeded to interrupt the enterprise, locking their access to the solar system, evacuating the planet and leaving the new inhabitants of the planet to their own luck, in order to adapt, evolve, and thrive, on the planet of frogs.
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