A bizarre laughing humanoid hyena. This mammal is hard to domesticate but possible nevertheless. Can be fed with anything but it has to be accompanied with cheese. It has the laughing syndrome disease; it laughs at the slightest movement and sound; the duration can last for more than a month. Although this syndrome can be annoying for its masters, laughing is crucial for a genio's survival. This mammal is blind (eyelids are always closed) so it uses ultrasound (laughing) to navigate through space and create a visual image of it's environment. This strange creature has a bizarre ecology; it hates it's own specie. Furthermore it looks for a mate twice younger and twice smaller.

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