leitzke dna search algorithm jurassic park dna : version search criteria : rana ( all , fragment len > 0 ) dna incorporating rana fragments versions maiasaurs 2.1-2.9 procompsognathids 3.0-3.7 othnielia 3.1-3.3 velociraptors 1.0-3.0 hypsilopbodontids 2.4-2.7 the result was clear : all breeding dinosaurs incorporated rana , or frog , dna .