Meet the British woodpeckers whose 'unmistakable hammering' is a sure sign that spring is on its way
Woodpeckers are guardians of ancient broad-leaved woodlands, busy ecosystem engineers and keen consumers of ant porridge.
Consistent patterns of positive selection in functionally similar genes can suggest a common selective pressure across a group of species. We use alignments of orthologous protein-coding genes from 39 ...
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