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Pulmoncers/Coconut Crabs: Descendants of coconut crab, they have diversified. Most live in the trees, but some are strict ground dwellers. They live in dens underground, where they sleep, do their molting (it takes a month), and have their young. Their young live in pools made by their mother, safe from aquatic predators. The mother has a special pouch for water during the period to refresh the water and feed it plankton and algae.

They range from sizes of 5 inches long with leg spans of 1.5 feet to 3 feet long with leg spans of 9 feet. They also range in diets as adults, but as larvae and adolescents they fill different niches.

The larvae feed on plankton and algae. When they first go on land they feed on fruit and rotting meat, and make their way up and get more specialized to their adult diet.

The ground crabs look a lot like today's coconut crab. The tree crabs have flexible legs to hang in the trees upside down (as they don't have anything to grasp it with besides the leg itself) and long eyestalks to have a wide range of vision. All tree crabs have strong pincers and while all carnivorous ground crabs have strong pincers too, the herbivorous ground crabs don't.

The tree crabs move in the trees by sliding their legs while hanging upside down, when they have to go to a new branch they grab on to the branch (hence their strong pincers), and if after they test it it's strong enough to hold them they "jump" to the branch (while still holding on) and continue going.

While they have a strong exoskeleton, they still have predators. Their only predators are carnivore primates and other predators at least twice as big as them. They are immune to the bite of most terrestrial octopi. They actually need the venom protection not to prevent being hunted, but to prevent fatal bites while hunting the terrestrial octopi.

The tree crabs are called Climberbugs and the land ones are called Megacrabs.

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Beaver Crab/Coconut Crabs: A 2 foot long ground megacrab, they form family groups to protect their young. They form dams like beavers from their serrated pincers to form a pool to protect their planktonic young. Then they protect their young and family members while molting, so they only fill 1 ecological niche in their lifetime. The mothers still have pouches to refresh the water for plankton and algae.

They are omnivores, leaning more on the carnivore side. They feed on fallen fruits, leaves from a specific future plant, and meat ranging from terrestrial octopi, antechinus, insectivore mice, other large arthropods (since the oxygen levels way higher), and carcasses. Only the biggest carnivores won't give up a carcass from a beaver crab family because of their serrated pincers.

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Bamberussi Alius
Common Name: Bamboo Pika
Ancestor: American Pika
Diet: Neo-bamboo
Habitat: Neo-bamboo forests of 90 MYF North American plains
Origin of the Latin name: "Bambusae" (bamboo), "Alius" (other), and "Perussi" (consumer). The name together forms "Other Bamboo Consumer".
Bamboo Pika are neo-bamboo forest dwelling pika descendants. They live in family groups with about 2 or 3 families per neo-bamboo forest. They live at the floor at the center of the neo-bamboo forests in small huts made out of mud and leaves, and at the center they are free of the predators, which while are small enough to fit in the forests they have hard times going through the tight climps that exist at the center.

They go through the forests in groups of 5-6 members and communicate with high pitch shrieks, which echo throughout the forest and warn other bamboo pika.

They look very mouse-like, with opposable fingers that have sharp claws to cling to the neo-bamboo. Their jaw is slightly longer and their incisors have grown harder and sharper, because they wear down faster in the bamboo. Their jaw strength has increased exponentially. They have grown a small gliding membrane, which they use to glide from tree to tree. Their tail has also grown longer and prehensile, adding extra grip to the neo-bamboo. They also use it to hang on the branches.

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Abada
Common Name: Abada
Ancestor: Rabbits
Diet: Grass
Habitat: 90 MYF North American plains
The abada are rabbit descendants. They are small but fast runners, able to outrun all predators of its size.

Like the mythical animal from which it is named, it is a 3 foot tall horned horse-like animal. They are very vicious, and only predators twice its size or more will dare take one. They are also very solitary animals, only gathering together for mating season.

Their family is one of the smallest victims of the 90 MYF extinction, with the closest relative surviving the extinction branching from its ancestors about 20 million years ago.