Orca cultural groups found to be genetically distinct

(Phys.org)—An international team of researchers has found that killer whale cultural groups have evolved to become genetically distinct from one another. In their paper published in the journal Nature Communications, the team describes how they obtained tissue samples from individual orcas from groups spanning the globe, sequenced the genomes of 50 different individuals and then outline what they found in comparing the results of one group to another.