- Simian-looking mammal of monotreme evolutionary background.
- Average height: 1 to 1.3 meters.
- Extremely long prehensile tail, roughly six times longer than its body length.
- Its tail is phenomenally flexible; capable of being tied into knots without suffering damage; and allowing these animals to move around by using it as a spring to bounce with.
- Its arms are noticeably longer than its legs.
- Tetradactyl hands and feet, all equipped with opposable thumbs.
- Covered in fur; generally yellow with black spots. Conversely, some individuals are solid yellow or solid black.
- Fur is longer on the chest and shoulders, forming a mane.
- Egg-laying: Members of this species are born from eggs camouflaged to resemble pear-like fruits.
- Superhuman strength: Marsupilamis are deceptively strong for their size; capable of tearing down large trees and fighting against animals much larger than themselves.
- Jungle habitat: These creatures live in the rainforests of Palombia, South America.
- Currently regarded as endangered
- Semi-sapient: Capable of using tools and building shell-shaped nests which can be closed to protect the offspring whenever a predator approaches. Also known to stuff their nests with feathers for comfort and decorate them for aesthetic purposes.
- Omnivore: Diet consists principally of fruit and fish, showing a distinct preference for piranhas.
- Arboreal: Marsupilamis spend most of their time on trees, and move swiftly among the branches.
- Monogamous: Once they find a mate, Marsupilamis build complex nests in the treetops and live in small family units consisting of father, mother, and offspring.
- Practice parental care.
- Generally docile nature; unless threatened.
- Makes a distinct vocalization that sounds like "Houba!". It's also capable of sound mimicry, including mimicking human speech.
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