Many wild animals hold a private piece of land or territory that they rigorously defend against intruders.

Having good neighbours that respect territory boundaries means less work and stress for territory owners – but some neighbours may be better than others, new research has revealed.

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Seychelles Warbler is endemic to its eponymous island group. Photo: Remi Jouan (commons.wikimedia.org)

Seychelles Warbler is endemic to its eponymous island group. Photo: Remi Jouan (commons.wikimedia.org)