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

Walnut, a red deer, lived a long life on an island off the west coast of Scotland, forming close bonds with other old females like Vanity in her later years.
Older red deer females like Walnut tend to spend more time alone or with a select few companions, showing a shift in their social structures as they age.
Gregory Albery, an ecologist, notes that the changes in social behavior among aging red deer females raise questions about the reasons and implications behind this shift.
Read at Ars Technica
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