Get Instant Summarized Text (Gist) During the Cretaceous period, high global temperatures likely caused a genetic divergence in lampreys, separating them into Northern and Southern Hemisphere ...

Figure 1: Relationship between the number of genes in a genome and the number of genes that have a closest relative (Table 1) in another genome. Doolittle, W.F. & Logsdon, J.M. Archaeal genomics ...