Planet of the changers

ten thousand light years away there is a solar system orbiting around a young star there are fifteen planets in orbit and each planet has vastly different terrain the first planet is like a tiny star around the size of jupiter this alters the orbits of the other planets so completly that there orbits can never be calculated and as such the life on them is constantly evolving in new and strange ways no one creature is the same there evolutinary speed is so fast that by the time a baby is born there parents may have evolved so much that they look nothing like them as you can imagine this makes a hectice world...... one thousand years later they where the most evolved spiecies in the universe but at eney given time one of them returns to a primative state but at eney time they may make a huge jump and evolve very qiuckly one of them made him self imortal but then reverted to a primale form