Jupiter

There live Jupiterians which could survive for nearly 300 years maximun (For Human, it's 80). they live through harsh killing of eachother and feasting for one eachother to survive.

Climate
High in the atmsosphere it's very cold and windy. Far below the clouds it's hotter than a blast furnace and even windier, and at all levels within the clouds there's constant lightning. The Galileo probe reported higher and higher windspeeds as it encountered higher and higher pressures and temperatures. When the probe was destroyed, the temperature was more than 300 degree F and the pressure was some 23 atmospheres. At that point it was 100 miles or more beneath the top of the clouds, but Jupiter's atmosphere is much deeper than that. If you could survive the pressure and intense heat, you would find the lower atmosphere to be a very Hellish and pitch black place before it turns to liquid molecular hydrogen. The atmosphere is mostly hydrogen and helium, with small amounts of ammonia, water, methane and other deadly chemicals such as phosphine and phosgene. Jupiter's upper atmosphere is clear and there appears to be several layers of clouds in the atmosphere. Wind speeds in Jupiter's atmosphere exceed 400 mph and there are thunderstorms everywhere. The atmosphere is riddled with huge storms, the biggest one being the Great Red Spot. This is a huge anti-cyclone or high pressure region that is 30,000 miles long. The planet's atmosphere is affected by the planet's very rapid spin, a day on Jupiter is less than 10 hours. The belts you see on the planet are where jet streams exist, and they blow in opposite directions. Jupiter only gets about 4 percent of the Solar energy Earth gets per square meter, thus the planet's internal heat is what drives it's weather. Jupiter has four large, planet sized moons and some 59 or 60 small moons. The large moons follow regular circular orbits about Jupiter whereas all but a few of the rest follow very elliptical and inclined orbit. Some even circle Jupiter backwards in relation to it's rotation. All are almost certainly captured asteroids.