Read-Me file for Capture Array Design Each species array was constructed using the eArray web-based array design software (https://earray.chem.agilent.com/earray/), based on the mitochondrial genome sequences obtained from GenBank (see text of paper for accession numbers) and a set of nuclear loci obtained from Sanger sequencing, sequences from Genbank and/or the bottlenose dolphin (Tursiops truncatus) genome as described in the text. The files provided here include fasta files of the nuclear sequences used to design the arrays, and 3 text files for each array (compressed as zip files) that list all probe sequences (1 ?SequenceList? file) and the positions of those probes on the array (2 files; ?DNABack_BCLeft?, ?DNAFront_BCBottom?). These files were downloaded directly from eArray, and can be used to replicate our array designs. The fasta files for each species can be used to design arrays with the same sequences, but different probe spacing and replication characteristics. Files: FinWhale 43loci_Array1_fasta.txt FinWhale_array.zip Beaked_75nucloci_fasta.txt BeakedWhale_array.zip Cmyd_nucFrags_fasta.txt Cmyd_array.zip SpermWhale_50nucSeqs_SNPdisco_Fasta.txt SpermWhale_Array.zip Spinner-Spotted_85nuc_loci_Fasta.txt Spinner-SpottedDolphin_Array.zip