A nest entrance of Myrmica rubra colony "decorated" with dead carpenter ants. Ants dump their waste out of their nest and in this case their landfill happened to be placed around the nest entrance making it look an epic skull cave. I took the photo in Satakunta, Finland 2025.
Myrmica rubra is "siloviholainen" in Finnish.
by North-Opportunity312
1 comment
Also unofficially but more commonly known as “kusiainen”.
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