A higher radioactivity rogue continental planet would likely have a significantly higher level of radiation present on its surface compared to a typical planet. This elevated level of radioactivity could be caused by a number of factors, such as a higher concentration of radioactive elements in the planet's crust or a history of intense geological activity that has released more radioactive materials into the environment. The presence of continents on this rogue planet would suggest that it has a diverse range of environments, with both landmasses and bodies of water present. The continents may be dotted with hot spots of intense radiation, while the oceans could be contaminated with radioactive substances that have leached from the land. Life on this rogue planet would likely be heavily impacted by the high levels of radioactivity. Organisms would need to have evolved mechanisms to protect themselves from the harmful effects of radiation, or else they would need to exist in isolated pockets where the radiation is less intense. The planet's ecosystem would likely be very different from what we see on Earth, with a greater emphasis on radiation-resistant organisms and a lower diversity of species overall. Overall, a higher radioactivity rogue continental planet would be a harsh and challenging environment, with intense radiation levels shaping every aspect of the planet's geology, climate, and biology. It would be a fascinating place to study, but also a dangerous one to visit.