Name: Ravecs
Home world: Poiyu
Appearance: They have humanoid faces and bodies. They have four eyes, razor-sharp teeth, arms that are basically just giant spikes, and for legs. Their eyes are green or yellow. 

Lifespan: 10-30 years
Aging: 1 human = 3 Ravecs
Childbirth: Once a Ravec reaches 30 years of age, a Harstyl gorges on food and does nothing else but gorge. After the day ends, the child eats all the food that the Ravec ate, then eats their way out of the parent. The parent dies from this, which is why Ravecs never live past 30. Harstyls do not have genders.
Culture: Ravecs don't have much of a culture, the only thing they do is either hunt or sleep. When they hunt, they go in packs and find the nearest source of meat, then try and beat eachother to it so that they can have a bite.
Language: Ravecs don't have a language

Biology: They are naturally fast, going about fifty miles per hour at their tops speeds, but mostly just staying from 10-30. They naturally communicate by instinct, knowing exactly what they need or feel at the moment. When eating, they naturally spin their teeth in their mouth in a circle, so it basically starts sawing through the food. Every Ravec is born with a unique ability.
Powers: Because their arms are spikes, if needed, they can shoot their spikes at anything, and the spikes will hit about as strong as a pistol, taking into consideration that their spikes are very sharp.

History: Ravecs don't have a history, because they just spend their time hunting or sleeping.