Norway rats and house mice are two of the most widespread invasive species worldwide. But where did the Norway rats and house mice in New Zealand come from? Our geneticist Lara Shepherd and colleagues from Manaaki Whenua Landcare Research, University of Waikato, and Place Management NSW have shed some light on this question by sequencing DNA from rodent bones from a 19th-century archaeological site in Sydney.
I awoke on the morning of 6 March to discover that we had very rapid progress over night and were approaching the rugged columnular basalt cliffs of the Antipodes Island, crowned with green tussocks. The home to the Antipodean albatross,the Antipodes Island parakeet and the erect-crested penguin (to name just