superior to us?

When our sun becomes a red giant, maybe these will survive.

http://www.sciencedaily.com/releases/2008/03/080325095239.htm

Common Aquatic Animals Show Extreme Resistance To Radiation

ScienceDaily (Mar. 27, 2008) — Scientists at Harvard University have found that a common class of freshwater invertebrate animals called bdelloid rotifers are extraordinarily resistant to ionizing radiation, surviving and continuing to reproduce after doses of gamma radiation much greater than that tolerated by any other animal species studied to date.
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Roughly a half-millimeter in size and commonly observed under microscopes in high-school biology classes, bdelloid rotifers are highly unusual in several regards: They appear to be exclusively asexual, have relatively few transposable genes, and can survive and reproduce after complete desiccation at any stage of their life cycle. Meselson and Gladyshev hypothesize that it's this last property that explains bdelloids' apparently unique resistance to radiation.