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Margo Sanchez and Stephanie Adamson, from California, were diving in San Diegos La Jolla Cove when they came across the swarm of tuna crabs. The crabs follow the current from Baja California north ...

The colonies of soldier crabs that inhabit the lagoons of Pacific atolls display a unique swarming behavior in their native habitat. When in a swarm of hundreds of individuals, the front of the ...