Sometimes, they associate with the distantly-related tucuxi (Sotalia fluviatilis), and giant otters (Pteronura brasiliensis) to hunt in a coordinated manner, by gathering and attacking fish stocks at the same time.
En ocasións incluso se asocian cos tucuxís (Sotalia fluviatilis) e as londras xigantes (Pteronura brasiliensis) para cazaren en forma coordinada: reúnen e atacan os bancos de peixes ao mesmo tiempo.