Pare che le formiche abbiano una specie di contapassi per ritrovare casa. Lo avevo sempre sospettato.
"Desert ants have an internal system - like a pedometer - that keeps track of how many steps they take, according to a new study. The insects seem to rely on this system to find their way back to the nest after foraging. Other insects may also possess this pedometer-like system."
Ants use pedometers to find home, NewScientist.com, 29 giugno 2006 (via Slashdot)
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