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It's not just us: Other animals change their social habits in old age


In patterns that may sound familiar, long-term studies reveal what elderly deer, sheep and macaques are up to in their twilight years

Walnut was born on June 3, 1995, at the start of what would become an unusually hot summer, on an island called Rum (pronounced room), the largest of the Small Isles off the west coast of Scotland. This was the case in another study Nussey was involved in, on a remote island called Hirta, about 100 miles to the northwest of Rum, where the hardy Soay sheep flock on the hillsides of Village Bay. If a recent application for a research grant is successful, Nussey will collaborate on this with Erin Siracusa, a behavioral ecologist at the University of Exeter in England who has already been studying elderly social networks on the other side of the Atlantic, on the island of Cayo Santiago less than a mile east of Puerto Rico.

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