why not?
I challenge you to find one example of a currently known animal, which does not have DNA :p
( Sygiinu, Mon 11 Jul 2005, 18:39, archived)

hmm,
some bacteria and viruses have RNA instead (but they're not animals). All i was saying is the chance of life on 2 different planets evolving the same basic form of genetic code is highly unlikely.
( asparagus time Is in Brazil., Mon 11 Jul 2005, 18:44, archived)