- Spend 1 point to speciate from Herbivorous Burrower(Eastern Rootgnawers) into Small Grazer(Jumping Rootgnawers) Both from the Cradle Savanna
- Spend 1 point to speciate from Small Predator (Long-tailed Bonegnawers) into Terrestrial Insectivore (Archgnawer) Both from the Cradle Savanna
- Spend 1 point to speciate from Herbivorous Burrower (Western Rootgnawers) to
Small Browser (Branchgnawers) Both from the Shielded Jungle
- Spend 1 point to speciate from Herbivorous Burrower (Western Rootgnawers) to
Slow-moving arboreal leaf-eater (Leafgnawers) Both from the Shielded Jungle
- Spend 1 point to speciate from Necro-Scavenger (Short-tailed Bonegnawers) to Ectoparasite (Skingnawers) Both from the Shielded Jungle, attack on Reca
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Modern paleontologists believe that Jumping Rootgnawers were a result of evolutionary pressure on Eastern Rootgnawers caused by Long-tailed Bonegnawers. Those new species left their burrows and resisted predation using their supreme agility instead. Nowadays we have little reason to assume that Jumping Rootgnawers ate mostly roots, on contrary, they seem to be rather typical grazers but the traditional name is still in use.
There is an ongoing debate on the evolutionary past of Archgnawers, species from the Triangle-Clawed clade. Some scientists still believe that they evolved from Eastern Rootgnawers who moved from a herbivore diet to an insectivore one but the majority of paleontologists are confident that Archgnawers evolved from Long-Tailed Bonegnawers who lost their teeth and started consuming archs and other ancient eusocial burrowing insects.
Leafgnawers are, most likely, an offshoot of Western Rootgnawers who found treetops safer than the underground. They used their claws not to dig but to attach themselves to high branches, staying safe from the mighty Cyert, terrible predators of the era.
Branchgnawers is another species that diverged from Western Rootgnawers. Unlike their cousins, Leafeaters, they stayed close to the ground and were far more nimble and capable to outrun Cyerts benefiting from a lack of proper small predators during the early years of Branchgnawers' evolution. Yet, according to modern data, they had poor eyesight that made them vulnerable to Poers
Skingnawers were creatures from nightmares. They evolved into really small tetrapods that used their characteristic Triangle claws to attach themselves to larger animals and consumed their skin and muscle tissues. It is believed that they fed mostly on two of the most successful species of the era: Bespeckled Grasper, Oolu, and Cyeta.
Will edit in the remaining point later, after the answer to my questions
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